diff --git a/lib/bin.js b/lib/bin.js
index 16433606..bfdf6ab6 100755
--- a/lib/bin.js
+++ b/lib/bin.js
@@ -37,7 +37,7 @@ const main = async (...args) => {
   if (process.env.__RIMRAF_TESTING_BIN_FAIL__ === '1')
     throw new Error('simulated rimraf failure')
 
-  const opts = {}
+  const opt = {}
   const paths = []
   let dashdash = false
   let impl = rimraf
@@ -54,22 +54,22 @@ const main = async (...args) => {
       console.log(help)
       return 0
     } else if (arg === '--preserve-root') {
-      opts.preserveRoot = true
+      opt.preserveRoot = true
       continue
     } else if (arg === '--no-preserve-root') {
-      opts.preserveRoot = false
+      opt.preserveRoot = false
       continue
     } else if (/^--tmp=/.test(arg)) {
       const val = arg.substr('--tmp='.length)
-      opts.tmp = val
+      opt.tmp = val
       continue
     } else if (/^--max-retries=/.test(arg)) {
       const val = +arg.substr('--max-retries='.length)
-      opts.maxRetries = val
+      opt.maxRetries = val
       continue
     } else if (/^--retry-delay=/.test(arg)) {
       const val = +arg.substr('--retry-delay='.length)
-      opts.retryDelay = val
+      opt.retryDelay = val
       continue
     } else if (/^--impl=/.test(arg)) {
       const val = arg.substr('--impl='.length)
@@ -96,7 +96,7 @@ const main = async (...args) => {
       paths.push(arg)
   }
 
-  if (opts.preserveRoot !== false) {
+  if (opt.preserveRoot !== false) {
     for (const path of paths.map(p => resolve(p))) {
       if (path === parse(path).root) {
         console.error(`rimraf: it is dangerous to operate recursively on '/'`)
@@ -112,7 +112,7 @@ const main = async (...args) => {
     return 1
   }
 
-  await impl(paths, opts)
+  await impl(paths, opt)
   return 0
 }
 
diff --git a/lib/index.js b/lib/index.js
index 8087ecba..10cbfbeb 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,5 +1,5 @@
 const pathArg = require('./path-arg.js')
-const optsArg = require('./opts-arg.js')
+const optArg = require('./opt-arg.js')
 
 const {rimrafNative, rimrafNativeSync} = require('./rimraf-native.js')
 const {rimrafManual, rimrafManualSync} = require('./rimraf-manual.js')
@@ -7,29 +7,29 @@ const {rimrafWindows, rimrafWindowsSync} = require('./rimraf-windows.js')
 const {rimrafPosix, rimrafPosixSync} = require('./rimraf-posix.js')
 const {useNative, useNativeSync} = require('./use-native.js')
 
-const wrap = fn => async (path, opts) => {
-  opts = optsArg(opts)
+const wrap = fn => async (path, opt) => {
+  opt = optArg(opt)
   await (Array.isArray(path)
-    ? Promise.all(path.map(p => fn(pathArg(p, opts), opts)))
-    : fn(pathArg(path, opts), opts))
+    ? Promise.all(path.map(p => fn(pathArg(p, opt), opt)))
+    : fn(pathArg(path, opt), opt))
 }
 
-const wrapSync = fn => (path, opts) => {
-  opts = optsArg(opts)
+const wrapSync = fn => (path, opt) => {
+  opt = optArg(opt)
   return Array.isArray(path)
-    ? path.forEach(p => fn(pathArg(p, opts), opts))
-    : fn(pathArg(path, opts), opts)
+    ? path.forEach(p => fn(pathArg(p, opt), opt))
+    : fn(pathArg(path, opt), opt)
 }
 
-const rimraf = wrap((path, opts) =>
-  useNative(opts)
-    ? rimrafNative(path, opts)
-    : rimrafManual(path, opts))
+const rimraf = wrap((path, opt) =>
+  useNative(opt)
+    ? rimrafNative(path, opt)
+    : rimrafManual(path, opt))
 
-const rimrafSync = wrapSync((path, opts) =>
-  useNativeSync(opts)
-    ? rimrafNativeSync(path, opts)
-    : rimrafManualSync(path, opts))
+const rimrafSync = wrapSync((path, opt) =>
+  useNativeSync(opt)
+    ? rimrafNativeSync(path, opt)
+    : rimrafManualSync(path, opt))
 
 rimraf.rimraf = rimraf
 rimraf.sync = rimraf.rimrafSync = rimrafSync
diff --git a/lib/opt-arg.js b/lib/opt-arg.js
new file mode 100644
index 00000000..b049f8c5
--- /dev/null
+++ b/lib/opt-arg.js
@@ -0,0 +1,2 @@
+// TODO: validate options
+module.exports = (opt = {}) => opt
diff --git a/lib/opts-arg.js b/lib/opts-arg.js
deleted file mode 100644
index cf6b4765..00000000
--- a/lib/opts-arg.js
+++ /dev/null
@@ -1,2 +0,0 @@
-// TODO: validate options
-module.exports = (opts = {}) => opts
diff --git a/lib/path-arg.js b/lib/path-arg.js
index d9ef5bf5..b5f29255 100644
--- a/lib/path-arg.js
+++ b/lib/path-arg.js
@@ -1,7 +1,7 @@
 const platform = require('./platform.js')
 const { resolve, parse } = require('path')
 const { inspect } = require('util')
-const pathArg = (path, opts = {}) => {
+const pathArg = (path, opt = {}) => {
   const type = typeof path
   if (type !== 'string') {
     const ctor = path && type === 'object' && path.constructor
@@ -28,7 +28,7 @@ const pathArg = (path, opts = {}) => {
   path = resolve(path)
   const { root } = parse(path)
 
-  if (path === root && opts.preserveRoot !== false) {
+  if (path === root && opt.preserveRoot !== false) {
     const msg = 'refusing to remove root directory without preserveRoot:false'
     throw Object.assign(new Error(msg), {
       path,
diff --git a/lib/rimraf-native.js b/lib/rimraf-native.js
index 0dff528b..2be5cae2 100644
--- a/lib/rimraf-native.js
+++ b/lib/rimraf-native.js
@@ -5,14 +5,14 @@ const {
   },
 } = require('./fs.js')
 
-const rimrafNative = (path, opts) => rm(path, {
-  ...opts,
+const rimrafNative = (path, opt) => rm(path, {
+  ...opt,
   force: true,
   recursive: true,
 })
 
-const rimrafNativeSync = (path, opts) => rmSync(path, {
-  ...opts,
+const rimrafNativeSync = (path, opt) => rmSync(path, {
+  ...opt,
   force: true,
   recursive: true,
 })
diff --git a/lib/rimraf-posix.js b/lib/rimraf-posix.js
index ba661533..70694d93 100644
--- a/lib/rimraf-posix.js
+++ b/lib/rimraf-posix.js
@@ -26,7 +26,7 @@ const {
   ignoreENOENTSync,
 } = require('./ignore-enoent.js')
 
-const rimrafPosix = async (path, options) => {
+const rimrafPosix = async (path, opt) => {
   const entries = await readdirOrError(path)
   if (!Array.isArray(entries)) {
     if (entries.code === 'ENOENT')
@@ -36,7 +36,8 @@ const rimrafPosix = async (path, options) => {
     return ignoreENOENT(unlink(path))
   }
   await Promise.all(entries.map(entry =>
-    rimrafPosix(resolve(path, entry), options)))
+    rimrafPosix(resolve(path, entry), opt)))
+
   return ignoreENOENT(rmdir(path))
 }
 
diff --git a/lib/rimraf-windows.js b/lib/rimraf-windows.js
index 8d6b4482..3858c436 100644
--- a/lib/rimraf-windows.js
+++ b/lib/rimraf-windows.js
@@ -71,11 +71,11 @@ const unlinkFixEPERMSync = path => {
   }
 }
 
-const rimrafWindows = async (path, opts) => {
-  if (!opts.tmp)
-    return rimrafWindows(path, { ...opts, tmp: await defaultTmp(path) })
+const rimrafWindows = async (path, opt) => {
+  if (!opt.tmp)
+    return rimrafWindows(path, { ...opt, tmp: await defaultTmp(path) })
 
-  if (path === opts.tmp)
+  if (path === opt.tmp)
     throw new Error('cannot delete temp directory used for deletion')
 
   const entries = await readdirOrError(path)
@@ -86,13 +86,13 @@ const rimrafWindows = async (path, opts) => {
     if (entries.code !== 'ENOTDIR')
       throw entries
 
-    return await ignoreENOENT(tmpUnlink(path, opts.tmp, unlinkFixEPERM))
+    return await ignoreENOENT(tmpUnlink(path, opt.tmp, unlinkFixEPERM))
   }
 
   await Promise.all(entries.map(entry =>
-    rimrafWindows(resolve(path, entry), opts)))
+    rimrafWindows(resolve(path, entry), opt)))
 
-  return await ignoreENOENT(tmpUnlink(path, opts.tmp, rmdir))
+  return await ignoreENOENT(tmpUnlink(path, opt.tmp, rmdir))
 }
 
 const tmpUnlink = async (path, tmp, rm) => {
@@ -101,11 +101,11 @@ const tmpUnlink = async (path, tmp, rm) => {
   return await rm(tmpFile)
 }
 
-const rimrafWindowsSync = (path, opts) => {
-  if (!opts.tmp)
-    return rimrafWindowsSync(path, { ...opts, tmp: defaultTmpSync(path) })
+const rimrafWindowsSync = (path, opt) => {
+  if (!opt.tmp)
+    return rimrafWindowsSync(path, { ...opt, tmp: defaultTmpSync(path) })
 
-  if (path === opts.tmp)
+  if (path === opt.tmp)
     throw new Error('cannot delete temp directory used for deletion')
 
   const entries = readdirOrErrorSync(path)
@@ -117,13 +117,13 @@ const rimrafWindowsSync = (path, opts) => {
       throw entries
 
     return ignoreENOENTSync(() =>
-      tmpUnlinkSync(path, opts.tmp, unlinkFixEPERMSync))
+      tmpUnlinkSync(path, opt.tmp, unlinkFixEPERMSync))
   }
 
   for (const entry of entries)
-    rimrafWindowsSync(resolve(path, entry), opts)
+    rimrafWindowsSync(resolve(path, entry), opt)
 
-  return ignoreENOENTSync(() => tmpUnlinkSync(path, opts.tmp, rmdirSync))
+  return ignoreENOENTSync(() => tmpUnlinkSync(path, opt.tmp, rmdirSync))
 }
 
 const tmpUnlinkSync = (path, tmp, rmSync) => {
diff --git a/lib/use-native.js b/lib/use-native.js
index 297c8279..678cf401 100644
--- a/lib/use-native.js
+++ b/lib/use-native.js
@@ -2,7 +2,7 @@ const version = process.env.__TESTING_RIMRAF_NODE_VERSION__ || process.version
 const versArr = version.replace(/^v/, '').split('.')
 const hasNative = +versArr[0] > 14 || +versArr[0] === 14 && +versArr[1] >= 14
 
-// TODO: check opts.rm === fs.rm, and use manual if they've overridden it
+// TODO: check opt.rm === fs.rm, and use manual if they've overridden it
 const useNative = !hasNative ? () => false : () => true
 const useNativeSync = !hasNative ? () => false : () => true
 
diff --git a/tap-snapshots/test/index.js.test.cjs b/tap-snapshots/test/index.js.test.cjs
index 8695ca27..fa006ef9 100644
--- a/tap-snapshots/test/index.js.test.cjs
+++ b/tap-snapshots/test/index.js.test.cjs
@@ -8,7 +8,7 @@
 exports[`test/index.js TAP mocky unit tests to select the correct function main function, useNative=false > must match snapshot 1`] = `
 Array [
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 1,
     },
@@ -31,7 +31,7 @@ Array [
     },
   ],
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 2,
     },
@@ -59,7 +59,7 @@ Array [
 exports[`test/index.js TAP mocky unit tests to select the correct function main function, useNative=true > must match snapshot 1`] = `
 Array [
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 1,
     },
@@ -82,7 +82,7 @@ Array [
     },
   ],
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 2,
     },
@@ -110,7 +110,7 @@ Array [
 exports[`test/index.js TAP mocky unit tests to select the correct function manual > must match snapshot 1`] = `
 Array [
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 3,
     },
@@ -127,7 +127,7 @@ Array [
     },
   ],
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 4,
     },
@@ -149,7 +149,7 @@ Array [
 exports[`test/index.js TAP mocky unit tests to select the correct function native > must match snapshot 1`] = `
 Array [
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 5,
     },
@@ -166,7 +166,7 @@ Array [
     },
   ],
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 6,
     },
@@ -188,7 +188,7 @@ Array [
 exports[`test/index.js TAP mocky unit tests to select the correct function posix > must match snapshot 1`] = `
 Array [
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 7,
     },
@@ -205,7 +205,7 @@ Array [
     },
   ],
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 8,
     },
@@ -227,7 +227,7 @@ Array [
 exports[`test/index.js TAP mocky unit tests to select the correct function windows > must match snapshot 1`] = `
 Array [
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 9,
     },
@@ -244,7 +244,7 @@ Array [
     },
   ],
   Array [
-    "optsArg",
+    "optArg",
     Object {
       "a": 10,
     },
diff --git a/test/index.js b/test/index.js
index 7a12db7c..8ba3dfa9 100644
--- a/test/index.js
+++ b/test/index.js
@@ -9,12 +9,12 @@ t.test('mocky unit tests to select the correct function', t => {
   let USE_NATIVE = true
   const mocks = {
     '../lib/use-native.js': {
-      useNative: opts => {
-        CALLS.push(['useNative', opts])
+      useNative: opt => {
+        CALLS.push(['useNative', opt])
         return USE_NATIVE
       },
-      useNativeSync: opts => {
-        CALLS.push(['useNativeSync', opts])
+      useNativeSync: opt => {
+        CALLS.push(['useNativeSync', opt])
         return USE_NATIVE
       },
     },
@@ -22,32 +22,32 @@ t.test('mocky unit tests to select the correct function', t => {
       CALLS.push(['pathArg', path])
       return path
     },
-    '../lib/opts-arg.js': opts => {
-      CALLS.push(['optsArg', opts])
-      return opts
+    '../lib/opt-arg.js': opt => {
+      CALLS.push(['optArg', opt])
+      return opt
     },
     '../lib/rimraf-posix.js': {
-      rimrafPosix: async (path, opts) => {
-        CALLS.push(['rimrafPosix', path, opts])
+      rimrafPosix: async (path, opt) => {
+        CALLS.push(['rimrafPosix', path, opt])
       },
-      rimrafPosixSync: async (path, opts) => {
-        CALLS.push(['rimrafPosixSync', path, opts])
+      rimrafPosixSync: async (path, opt) => {
+        CALLS.push(['rimrafPosixSync', path, opt])
       },
     },
     '../lib/rimraf-windows.js': {
-      rimrafWindows: async (path, opts) => {
-        CALLS.push(['rimrafWindows', path, opts])
+      rimrafWindows: async (path, opt) => {
+        CALLS.push(['rimrafWindows', path, opt])
       },
-      rimrafWindowsSync: async (path, opts) => {
-        CALLS.push(['rimrafWindowsSync', path, opts])
+      rimrafWindowsSync: async (path, opt) => {
+        CALLS.push(['rimrafWindowsSync', path, opt])
       },
     },
     '../lib/rimraf-native.js': {
-      rimrafNative: async (path, opts) => {
-        CALLS.push(['rimrafNative', path, opts])
+      rimrafNative: async (path, opt) => {
+        CALLS.push(['rimrafNative', path, opt])
       },
-      rimrafNativeSync: async (path, opts) => {
-        CALLS.push(['rimrafNativeSync', path, opts])
+      rimrafNativeSync: async (path, opt) => {
+        CALLS.push(['rimrafNativeSync', path, opt])
       },
     },
   }
@@ -150,8 +150,8 @@ t.test('accept array of paths as first arg', async t => {
       useNativeSync: () => true,
     },
     '../lib/rimraf-native.js': {
-      rimrafNative: async (path, opts) => ASYNC_CALLS.push([path, opts]),
-      rimrafNativeSync: (path, opts) => SYNC_CALLS.push([path, opts]),
+      rimrafNative: async (path, opt) => ASYNC_CALLS.push([path, opt]),
+      rimrafNativeSync: (path, opt) => SYNC_CALLS.push([path, opt]),
     },
   })
   t.equal(await rimraf(['a', 'b', 'c']), undefined)
diff --git a/test/opt-arg.js b/test/opt-arg.js
new file mode 100644
index 00000000..4d6c34f1
--- /dev/null
+++ b/test/opt-arg.js
@@ -0,0 +1,5 @@
+const t = require('tap')
+const optArg = require('../lib/opt-arg.js')
+const opt = { a: 1 }
+t.equal(optArg(opt), opt, 'returns object if provided')
+t.same(optArg(), {}, 'returns new object otherwise')
diff --git a/test/opts-arg.js b/test/opts-arg.js
deleted file mode 100644
index 1e3c97c9..00000000
--- a/test/opts-arg.js
+++ /dev/null
@@ -1,5 +0,0 @@
-const t = require('tap')
-const optsArg = require('../lib/opts-arg.js')
-const opts = { a: 1 }
-t.equal(optsArg(opts), opts, 'returns object if provided')
-t.same(optsArg(), {}, 'returns new object otherwise')