diff --git a/API.md b/API.md
index ed52eb60f..8e66e3df6 100755
--- a/API.md
+++ b/API.md
@@ -97,11 +97,11 @@
     - [`date.max(date)`](#datemaxdate)
     - [`date.min(date)`](#datemindate)
     - [`date.timestamp([type])`](#datetimestamptype)
-  - [`func` - inherits from `Any`](#func---inherits-from-any)
-    - [`func.arity(n)`](#funcarityn)
-    - [`func.class()`](#funcclass)
-    - [`func.maxArity(n)`](#funcmaxarityn)
-    - [`func.minArity(n)`](#funcminarityn)
+  - [`function` - inherits from `object`](#function---inherits-from-object)
+    - [`function.arity(n)`](#funcarityn)
+    - [`function.class()`](#funcclass)
+    - [`function.maxArity(n)`](#funcmaxarityn)
+    - [`function.minArity(n)`](#funcminarityn)
   - [`link(ref)` - inherits from `Any`](#linkref---inherits-from-any)
     - [`link.ref(ref)`](#linkrefref)
   - [`number` - inherits from `Any`](#number---inherits-from-any)
@@ -2037,7 +2037,7 @@ const schema = Joi.date().timestamp('unix'); // for unix timestamp (seconds)
 
 Possible validation errors: [`date.format`](#dateformat)
 
-### `func` - inherits from `Any`
+### `function` - inherits from `object`
 
 Generates a schema object that matches a function type.
 
@@ -2046,51 +2046,51 @@ to be cloned. While the function will retain its prototype and closure, it will
 set to `0`).
 
 ```js
-const func = Joi.func();
+const func = Joi.function();
 await func.validateAsync(function () {});
 ```
 
 Possible validation errors: [`object.base`](#objectbase)
 
-#### `func.arity(n)`
+#### `function.arity(n)`
 
 Specifies the arity of the function where:
 - `n` - the arity expected.
 
 ```js
-const schema = Joi.func().arity(2);
+const schema = Joi.function().arity(2);
 ```
 
 Possible validation errors: [`function.arity`](#functionarity)
 
-#### `func.class()`
+#### `function.class()`
 
 Requires the function to be a class.
 
 ```js
-const schema = Joi.func().class();
+const schema = Joi.function().class();
 ```
 
 Possible validation errors: [`function.class`](#functionclass)
 
-#### `func.maxArity(n)`
+#### `function.maxArity(n)`
 
 Specifies the maximal arity of the function where:
 - `n` - the maximum arity expected.
 
 ```js
-const schema = Joi.func().maxArity(3);
+const schema = Joi.function().maxArity(3);
 ```
 
 Possible validation errors: [`function.maxArity`](#functionmaxarity)
 
-#### `func.minArity(n)`
+#### `function.minArity(n)`
 
 Specifies the minimal arity of the function where:
 - `n` - the minimal arity expected.
 
 ```js
-const schema = Joi.func().minArity(1);
+const schema = Joi.function().minArity(1);
 ```
 
 Possible validation errors: [`function.minArity`](#functionminarity)
diff --git a/benchmarks/suite.js b/benchmarks/suite.js
index ad6a0a2d9..56096949b 100755
--- a/benchmarks/suite.js
+++ b/benchmarks/suite.js
@@ -79,7 +79,7 @@ module.exports = (Joi) => [
                     ).single().sparse().required(),
                     bar: Joi.number().min(12).max(353).default(56).positive(),
                     baz: Joi.date().timestamp('unix'),
-                    qux: [Joi.func().minArity(12).strict(), Joi.binary().max(345)],
+                    qux: [Joi.function().minArity(12).strict(), Joi.binary().max(345)],
                     quxx: Joi.string().ip({ version: ['ipv6'] }),
                     quxxx: [554, 'azerty', true]
                 })
diff --git a/lib/schemas.js b/lib/schemas.js
index 21b1f1400..f160d091f 100755
--- a/lib/schemas.js
+++ b/lib/schemas.js
@@ -54,41 +54,41 @@ internals.rule = Joi.object({
         Joi.object({
             name: Joi.string().pattern(internals.nameRx).required(),
             ref: Joi.boolean(),
-            assert: Joi.alternatives([Joi.func(), Joi.object().schema()]).when('ref', { is: true, then: Joi.required() }),
-            normalize: Joi.func(),
-            message: Joi.string().when('assert', { is: Joi.func(), then: Joi.required() })
+            assert: Joi.alternatives([Joi.function(), Joi.object().schema()]).when('ref', { is: true, then: Joi.required() }),
+            normalize: Joi.function(),
+            message: Joi.string().when('assert', { is: Joi.function(), then: Joi.required() })
         })
     ),
     convert: Joi.boolean(),
     manifest: Joi.boolean(),
-    method: Joi.func().allow(false),
+    method: Joi.function().allow(false),
     multi: Joi.boolean(),
-    validate: Joi.func()
+    validate: Joi.function()
 });
 
 
 exports.extension = Joi.object({
     type: Joi.string().required(),
 
-    args: Joi.func(),
+    args: Joi.function(),
     base: Joi.object().schema(),
     coerce: [
-        Joi.func().maxArity(3),
-        Joi.object({ method: Joi.func().maxArity(3).required(), from: Joi.array().items(Joi.string()).single() })
+        Joi.function().maxArity(3),
+        Joi.object({ method: Joi.function().maxArity(3).required(), from: Joi.array().items(Joi.string()).single() })
     ],
     flags: Joi.object().pattern(internals.nameRx, Joi.object({
         setter: Joi.string(),
         default: Joi.any()
     })),
     manifest: {
-        build: Joi.func().arity(2)
+        build: Joi.function().arity(2)
     },
     messages: [Joi.object(), Joi.string()],
-    fork: Joi.func().arity(3),
-    modifiers: Joi.object().pattern(internals.nameRx, Joi.func().minArity(1).maxArity(2)),
-    overrides: Joi.object().pattern(internals.nameRx, Joi.func()),
-    prepare: Joi.func().maxArity(3),
-    rebuild: Joi.func().arity(1),
+    fork: Joi.function().arity(3),
+    modifiers: Joi.object().pattern(internals.nameRx, Joi.function().minArity(1).maxArity(2)),
+    overrides: Joi.object().pattern(internals.nameRx, Joi.function()),
+    prepare: Joi.function().maxArity(3),
+    rebuild: Joi.function().arity(1),
     rules: Joi.object().pattern(internals.nameRx, internals.rule),
     terms: Joi.object().pattern(internals.nameRx, Joi.object({
         init: Joi.array().allow(null).required(),
@@ -97,13 +97,13 @@ exports.extension = Joi.object({
             Joi.object({ mapped: Joi.string().required() })
         ])
     })),
-    validate: Joi.func().maxArity(3)
+    validate: Joi.function().maxArity(3)
 })
     .and('fork', 'rebuild')
     .strict();
 
 
-exports.extensions = Joi.array().items(Joi.object(), Joi.func().arity(1)).strict();
+exports.extensions = Joi.array().items(Joi.object(), Joi.function().arity(1)).strict();
 
 
 // Manifest
@@ -115,7 +115,7 @@ internals.desc = {
     }),
 
     func: Joi.object({
-        function: Joi.func().required(),
+        function: Joi.function().required(),
         options: {
             literal: true
         }
@@ -128,7 +128,7 @@ internals.desc = {
             separator: Joi.string().length(1).allow(false),
             ancestor: Joi.number().min(0).integer().allow('root'),
             map: Joi.array().items(Joi.array().length(2)).min(1),
-            adjust: Joi.func(),
+            adjust: Joi.function(),
             iterables: Joi.boolean()
         })
             .required()
@@ -155,7 +155,7 @@ internals.desc = {
 
 internals.desc.entity = Joi.alternatives([
     Joi.boolean(),
-    Joi.func(),
+    Joi.function(),
     Joi.number(),
     Joi.string(),
     internals.desc.buffer,
@@ -173,7 +173,7 @@ internals.desc.values = Joi.array()
     .items(
         null,
         Joi.boolean(),
-        Joi.func(),
+        Joi.function(),
         Joi.number().allow(Infinity, -Infinity),
         Joi.string().allow(''),
         Joi.symbol(),
diff --git a/test/base.js b/test/base.js
index 9b405d41c..cf917dd8b 100755
--- a/test/base.js
+++ b/test/base.js
@@ -970,7 +970,7 @@ describe('any', () => {
         it('sets literal function default', () => {
 
             const func = () => 'just a function';
-            const schema = Joi.func().default(func, { literal: true });
+            const schema = Joi.function().default(func, { literal: true });
             expect(schema.validate(undefined)).to.equal({ value: func });
         });
 
@@ -986,7 +986,7 @@ describe('any', () => {
                 return defaultFn;
             };
 
-            const schema = Joi.func().default(defaultGeneratorFn);
+            const schema = Joi.function().default(defaultGeneratorFn);
             expect(schema.validate(undefined)).to.equal({ value: defaultFn });
         });
 
diff --git a/test/index.js b/test/index.js
index 0f3753950..8ddb66db4 100755
--- a/test/index.js
+++ b/test/index.js
@@ -688,8 +688,8 @@ describe('Joi', () => {
         const config = {
             module: Joi.alternatives([
                 Joi.object({
-                    compile: Joi.func().required(),
-                    execute: Joi.func()
+                    compile: Joi.function().required(),
+                    execute: Joi.function()
                 }),
                 Joi.string()
             ]).required()
@@ -712,8 +712,8 @@ describe('Joi', () => {
         const config = {
             module: Joi.alt().try(
                 Joi.object({
-                    compile: Joi.func().required(),
-                    execute: Joi.func()
+                    compile: Joi.function().required(),
+                    execute: Joi.function()
                 }).required(),
                 Joi.string().required()
             )
@@ -727,8 +727,8 @@ describe('Joi', () => {
         const config = {
             module: Joi.alt().try([
                 Joi.object({
-                    compile: Joi.func().required(),
-                    execute: Joi.func()
+                    compile: Joi.function().required(),
+                    execute: Joi.function()
                 }),
                 Joi.string()
             ]).required()
diff --git a/test/manifest.js b/test/manifest.js
index 6fb400fb6..a6ce819e1 100755
--- a/test/manifest.js
+++ b/test/manifest.js
@@ -270,7 +270,7 @@ describe('Manifest', () => {
                 Joi.binary(),
                 Joi.boolean(),
                 Joi.date(),
-                Joi.func(),
+                Joi.function(),
                 Joi.number(),
                 Joi.object(),
                 Joi.string(),
@@ -282,7 +282,7 @@ describe('Manifest', () => {
 
             internals.test([
                 Joi.string().required(),
-                Joi.func().default(() => null, { literal: true }),
+                Joi.function().default(() => null, { literal: true }),
                 Joi.object().default(),
                 Joi.boolean().optional(),
                 Joi.string().empty(''),
diff --git a/test/types/function.js b/test/types/function.js
index 5061f11a3..97ea86b8b 100755
--- a/test/types/function.js
+++ b/test/types/function.js
@@ -18,7 +18,7 @@ describe('function', () => {
 
     it('throws an exception if arguments were passed.', () => {
 
-        expect(() => Joi.func('invalid argument.')).to.throw('The function type does not allow arguments');
+        expect(() => Joi.function('invalid argument.')).to.throw('The function type does not allow arguments');
     });
 
     it('validates a function', () => {
@@ -37,6 +37,22 @@ describe('function', () => {
         ]);
     });
 
+    it('supports func() alias', () => {
+
+        Helper.validate(Joi.func().required(), [
+            [function () { }, true],
+            ['', false, null, {
+                message: '"value" must be of type function',
+                details: [{
+                    message: '"value" must be of type function',
+                    path: [],
+                    type: 'object.base',
+                    context: { label: 'value', value: '', type: 'function' }
+                }]
+            }]
+        ]);
+    });
+
     it('validates a function arity', () => {
 
         const schema = Joi.function().arity(2).required();
diff --git a/test/types/object.js b/test/types/object.js
index dcc640bd8..02bdbd1a8 100755
--- a/test/types/object.js
+++ b/test/types/object.js
@@ -1143,7 +1143,7 @@ describe('object', () => {
 
             const schema = Joi.object({
                 a: Joi.string(),
-                b: Joi.func().keys({ c: Joi.string(), d: Joi.number() }),
+                b: Joi.function().keys({ c: Joi.string(), d: Joi.number() }),
                 d: Joi.number()
             }).and('a', 'b.c');
 
@@ -2607,7 +2607,7 @@ describe('object', () => {
 
             const schema = Joi.object({
                 a: Joi.string(),
-                b: Joi.func().keys({ c: Joi.string(), d: Joi.number() }),
+                b: Joi.function().keys({ c: Joi.string(), d: Joi.number() }),
                 d: Joi.number()
             })
                 .nand('a', 'b.c');
@@ -2903,7 +2903,7 @@ describe('object', () => {
 
             const schema = Joi.object({
                 a: Joi.string(),
-                b: Joi.func().keys({ c: Joi.string() }),
+                b: Joi.function().keys({ c: Joi.string() }),
                 d: Joi.number()
             }).or('a', 'b.c');
 
@@ -3050,7 +3050,7 @@ describe('object', () => {
 
             const schema = Joi.object({
                 a: Joi.string(),
-                b: Joi.func().keys({ c: Joi.string(), d: Joi.number() }),
+                b: Joi.function().keys({ c: Joi.string(), d: Joi.number() }),
                 d: Joi.number()
             }).oxor('a', 'b.c');
 
@@ -4014,7 +4014,7 @@ describe('object', () => {
 
             const schema = Joi.object({
                 a: Joi.string(),
-                b: Joi.func().keys({ c: Joi.string(), d: Joi.number() }),
+                b: Joi.function().keys({ c: Joi.string(), d: Joi.number() }),
                 d: Joi.number()
             }).with('a', 'b.c');
 
@@ -4274,7 +4274,7 @@ describe('object', () => {
 
             const schema = Joi.object({
                 a: Joi.string(),
-                b: Joi.func().keys({ c: Joi.string(), d: Joi.number() }),
+                b: Joi.function().keys({ c: Joi.string(), d: Joi.number() }),
                 d: Joi.number()
             })
                 .without('a', ['b.c', 'b.d']);
@@ -4693,7 +4693,7 @@ describe('object', () => {
 
             const schema = Joi.object({
                 a: Joi.string(),
-                b: Joi.func().keys({ c: Joi.string(), d: Joi.number() }),
+                b: Joi.function().keys({ c: Joi.string(), d: Joi.number() }),
                 d: Joi.number()
             }).xor('a', 'b.c');