diff --git a/docs/rules/prevent-abbreviations.md b/docs/rules/prevent-abbreviations.md
index 337606285c..0103f173b7 100644
--- a/docs/rules/prevent-abbreviations.md
+++ b/docs/rules/prevent-abbreviations.md
@@ -123,13 +123,13 @@ The example below disables all the default replacements and enables a custom `cm
 ]
 ```
 
-### whitelist
+### allowList
 
 Type: `object`
 
-You can extend the default whitelist by passing the `whitelist` option.
+You can extend the default allowList by passing the `allowList` option.
 
-Unlike the `replacements` option, `whitelist` matches full identifier names case-sensitively.
+Unlike the `replacements` option, `allowList` matches full identifier names case-sensitively.
 
 For example, if you want to report `props` → `properties` (enabled by default), but allow `getInitialProps`, you could use the following configuration.
 
@@ -137,19 +137,19 @@ For example, if you want to report `props` → `properties` (enabled by default)
 "unicorn/prevent-abbreviations": [
 	"error",
 	{
-		"whitelist": {
+		"allowList": {
 			"getInitialProps": true
 		}
 	}
 ]
 ```
 
-### extendDefaultWhitelist
+### extendDefaultAllowList
 
 Type: `boolean`\
 Default: `true`
 
-Pass `"extendDefaultWhitelist": false` to override the default `whitelist` completely.
+Pass `"extendDefaultAllowList": false` to override the default `allowList` completely.
 
 ### checkDefaultAndNamespaceImports
 
diff --git a/package.json b/package.json
index 34faba0b4a..0f09420676 100644
--- a/package.json
+++ b/package.json
@@ -136,7 +136,9 @@
 				"error",
 				{
 					"replacements": {
-						"fn": false
+						"ref": {
+							"reference": true
+						}
 					}
 				}
 			]
diff --git a/rules/filename-case.js b/rules/filename-case.js
index 6eddcb4ffc..613b602ea0 100644
--- a/rules/filename-case.js
+++ b/rules/filename-case.js
@@ -16,7 +16,7 @@ const PLACEHOLDER_REGEX = new RegExp(PLACEHOLDER, 'i');
 const isIgnoredChar = char => !/^[a-z\d-_$]$/i.test(char);
 const ignoredByDefault = new Set(['index.js', 'index.mjs', 'index.cjs', 'index.ts', 'index.tsx', 'index.vue']);
 
-function ignoreNumbers(fn) {
+function ignoreNumbers(caseFunction) {
 	return string => {
 		const stack = [];
 		let execResult = numberRegex.exec(string);
@@ -27,7 +27,7 @@ function ignoreNumbers(fn) {
 			execResult = numberRegex.exec(string);
 		}
 
-		let withCase = fn(string);
+		let withCase = caseFunction(string);
 
 		while (stack.length > 0) {
 			withCase = withCase.replace(PLACEHOLDER_REGEX, stack.shift());
@@ -80,12 +80,12 @@ function getChosenCases(options) {
 function validateFilename(words, caseFunctions) {
 	return words
 		.filter(({ignored}) => !ignored)
-		.every(({word}) => caseFunctions.some(fn => fn(word) === word));
+		.every(({word}) => caseFunctions.some(caseFunction => caseFunction(word) === word));
 }
 
 function fixFilename(words, caseFunctions, {leading, extension}) {
 	const replacements = words
-		.map(({word, ignored}) => ignored ? [word] : caseFunctions.map(fn => fn(word)));
+		.map(({word, ignored}) => ignored ? [word] : caseFunctions.map(caseFunction => caseFunction(word)));
 
 	const {
 		samples: combinations
diff --git a/rules/prefer-keyboard-event-key.js b/rules/prefer-keyboard-event-key.js
index c73a05a108..72961171b6 100644
--- a/rules/prefer-keyboard-event-key.js
+++ b/rules/prefer-keyboard-event-key.js
@@ -103,10 +103,10 @@ const isPropertyOf = (node, eventNode) => {
 
 // The third argument is a condition function, as one passed to `Array#filter()`
 // Helpful if nearest node of type also needs to have some other property
-const getMatchingAncestorOfType = (node, type, fn = () => true) => {
+const getMatchingAncestorOfType = (node, type, testFunction = () => true) => {
 	let current = node;
 	while (current) {
-		if (current.type === type && fn(current)) {
+		if (current.type === type && testFunction(current)) {
 			return current;
 		}
 
diff --git a/rules/prevent-abbreviations.js b/rules/prevent-abbreviations.js
index 303e760e74..b78193c45d 100644
--- a/rules/prevent-abbreviations.js
+++ b/rules/prevent-abbreviations.js
@@ -261,8 +261,8 @@ const prepareOptions = ({
 	extendDefaultReplacements = true,
 	replacements = {},
 
-	extendDefaultWhitelist = true,
-	whitelist = {},
+	extendDefaultAllowList = true,
+	allowList = {},
 
 	ignore = []
 } = {}) => {
@@ -270,9 +270,9 @@ const prepareOptions = ({
 		defaultsDeep({}, replacements, defaultReplacements) :
 		replacements;
 
-	const mergedWhitelist = extendDefaultWhitelist ?
-		defaultsDeep({}, whitelist, defaultAllowList) :
-		whitelist;
+	const mergedAllowList = extendDefaultAllowList ?
+		defaultsDeep({}, allowList, defaultAllowList) :
+		allowList;
 
 	ignore = ignore.map(
 		pattern => pattern instanceof RegExp ? pattern : new RegExp(pattern, 'u')
@@ -294,15 +294,15 @@ const prepareOptions = ({
 					[discouragedName, new Map(Object.entries(replacements))]
 			)
 		),
-		whitelist: new Map(Object.entries(mergedWhitelist)),
+		allowList: new Map(Object.entries(mergedAllowList)),
 
 		ignore
 	};
 };
 
-const getWordReplacements = (word, {replacements, whitelist}) => {
-	// Skip constants and whitelist
-	if (isUpperCase(word) || whitelist.get(word)) {
+const getWordReplacements = (word, {replacements, allowList}) => {
+	// Skip constants and allowList
+	if (isUpperCase(word) || allowList.get(word)) {
 		return [];
 	}
 
@@ -322,10 +322,10 @@ const getWordReplacements = (word, {replacements, whitelist}) => {
 };
 
 const getNameReplacements = (name, options, limit = 3) => {
-	const {whitelist, ignore} = options;
+	const {allowList, ignore} = options;
 
-	// Skip constants and whitelist
-	if (isUpperCase(name) || whitelist.get(name) || ignore.some(regexp => regexp.test(name))) {
+	// Skip constants and allowList
+	if (isUpperCase(name) || allowList.get(name) || ignore.some(regexp => regexp.test(name))) {
 		return {total: 0};
 	}
 
@@ -818,10 +818,10 @@ const schema = [
 			replacements: {
 				$ref: '#/items/0/definitions/abbreviations'
 			},
-			extendDefaultWhitelist: {
+			extendDefaultAllowList: {
 				type: 'boolean'
 			},
-			whitelist: {
+			allowList: {
 				$ref: '#/items/0/definitions/booleanObject'
 			},
 			ignore: {
diff --git a/test/prevent-abbreviations.mjs b/test/prevent-abbreviations.mjs
index 8d55027fa3..417848df5d 100644
--- a/test/prevent-abbreviations.mjs
+++ b/test/prevent-abbreviations.mjs
@@ -107,21 +107,21 @@ const checkPropertiesOptions = [
 	}
 ];
 
-const extendDefaultWhitelistOptions = [
+const extendDefaultAllowListOptions = [
 	{
-		whitelist: {
+		allowList: {
 			err: true
 		},
-		extendDefaultWhitelist: true
+		extendDefaultAllowList: true
 	}
 ];
 
-const noExtendDefaultWhitelistOptions = [
+const noExtendDefaultAllowListOptions = [
 	{
-		whitelist: {
+		allowList: {
 			err: true
 		},
-		extendDefaultWhitelist: false
+		extendDefaultAllowList: false
 	}
 ];
 
@@ -275,10 +275,10 @@ ruleTester.run('prevent-abbreviations', rule, {
 			filename: 'err/http-error.js'
 		},
 
-		// `extendDefaultWhitelist` option
+		// `extendDefaultAllowList` option
 		{
 			code: 'const propTypes = 2;const err = 2;',
-			options: extendDefaultWhitelistOptions
+			options: extendDefaultAllowListOptions
 		},
 
 		// `ignore` option
@@ -1311,11 +1311,11 @@ ruleTester.run('prevent-abbreviations', rule, {
 			errors: createErrors('The filename `cb.js` should be named `circuitBreacker.js`. A more descriptive name will do too.')
 		},
 
-		// `extendDefaultWhitelist` option
+		// `extendDefaultAllowList` option
 		{
 			code: 'const propTypes = 2;const err = 2;',
 			output: 'const propertyTypes = 2;const err = 2;',
-			options: noExtendDefaultWhitelistOptions,
+			options: noExtendDefaultAllowListOptions,
 			errors: createErrors()
 		}
 	]