diff --git a/docs/content/docs/basic-usage.mdx b/docs/content/docs/basic-usage.mdx
index 5ecaa53e79..e13462d727 100644
--- a/docs/content/docs/basic-usage.mdx
+++ b/docs/content/docs/basic-usage.mdx
@@ -134,7 +134,7 @@ export const auth = betterAuth({
 })
 ```
 
-### Signin with social providers
+### Sign in with social providers
 
 To sign in using a social provider you need to call `signIn.social`. It takes an object with the following properties:
 
diff --git a/docs/content/docs/plugins/email-otp.mdx b/docs/content/docs/plugins/email-otp.mdx
index 44c2447757..b3bc957b98 100644
--- a/docs/content/docs/plugins/email-otp.mdx
+++ b/docs/content/docs/plugins/email-otp.mdx
@@ -3,7 +3,7 @@ title: Email OTP
 description: Email OTP plugin for Better Auth.
 ---
 
-The Email OTP plugin allows user to sign-in, verify their email, or reset their password using a one-time password (OTP) sent to their email address.
+The Email OTP plugin allows user to sign in, verify their email, or reset their password using a one-time password (OTP) sent to their email address.
 
 
 ## Installation
@@ -59,7 +59,7 @@ const { data, error } = await authClient.emailOtp.sendVerificationOtp({
 })
 ```
 
-### SignIn with OTP
+### Sign in with OTP
 
 Once the user provides the OTP, you can sign in the user using the `signIn.emailOTP()` method.
 
diff --git a/docs/content/docs/plugins/passkey.mdx b/docs/content/docs/plugins/passkey.mdx
index 32e17a5396..15de83ac37 100644
--- a/docs/content/docs/plugins/passkey.mdx
+++ b/docs/content/docs/plugins/passkey.mdx
@@ -119,9 +119,9 @@ const { data, error } = await authClient.passkey.addPasskey({
 });
 ```
 
-### Signin with a passkey
+### Sign in with a passkey
 
-To signin with a passkey you can use the passkeySignIn method. This will prompt the user to sign in with their passkey.
+To sign in with a passkey you can use the passkeySignIn method. This will prompt the user to sign in with their passkey.
 
 Signin method accepts:
 
diff --git a/docs/content/docs/plugins/phone-number.mdx b/docs/content/docs/plugins/phone-number.mdx
index 82b55213c0..4f5b27dacd 100644
--- a/docs/content/docs/plugins/phone-number.mdx
+++ b/docs/content/docs/plugins/phone-number.mdx
@@ -111,7 +111,7 @@ export const auth = betterAuth({
 })
 ```
 
-### SignIn with Phone number
+### Sign In with Phone Number
 
 In addition to signing in a user using send-verify flow, you can also use phone number as an identifier and sign in a user using phone number and password.
 
diff --git a/docs/content/docs/plugins/username.mdx b/docs/content/docs/plugins/username.mdx
index 46652fc17b..42fd02f3b4 100644
--- a/docs/content/docs/plugins/username.mdx
+++ b/docs/content/docs/plugins/username.mdx
@@ -59,7 +59,7 @@ The username plugin wraps the email and password authenticator and adds username
 
 ## Usage
 
-### Signup with username
+### Sign up with username
 
 To sign up a user with username, you can use the existing `signUp.email` function provided by the client. The `signUp` function should take a new `username` property in the object.
 
@@ -72,9 +72,9 @@ const data = await authClient.signUp.email({
 })
 ```
 
-### Signin with username
+### Sign in with username
 
-To signin a user with username, you can use the `signIn.username` function provided by the client. The `signIn` function takes an object with the following properties:
+To sign in a user with username, you can use the `signIn.username` function provided by the client. The `signIn` function takes an object with the following properties:
 
 - `username`: The username of the user.
 - `password`: The password of the user.
diff --git a/packages/better-auth/src/plugins/magic-link/magic-link.test.ts b/packages/better-auth/src/plugins/magic-link/magic-link.test.ts
index de7e3e62ea..637306351a 100644
--- a/packages/better-auth/src/plugins/magic-link/magic-link.test.ts
+++ b/packages/better-auth/src/plugins/magic-link/magic-link.test.ts
@@ -101,7 +101,7 @@ describe("magic link", async () => {
 		);
 	});
 
-	it("should signup with magic link", async () => {
+	it("should sign up with magic link", async () => {
 		const email = "new-email@email.com";
 		await client.signIn.magicLink({
 			email,
diff --git a/packages/better-auth/src/plugins/sso/sso.test.ts b/packages/better-auth/src/plugins/sso/sso.test.ts
index e61cf7ef11..9c675e56da 100644
--- a/packages/better-auth/src/plugins/sso/sso.test.ts
+++ b/packages/better-auth/src/plugins/sso/sso.test.ts
@@ -140,7 +140,7 @@ describe("SSO", async () => {
 		}
 	});
 
-	it("should signin with SSO provider with email matching", async () => {
+	it("should sign in with SSO provider with email matching", async () => {
 		const res = await auth.api.signInSSO({
 			body: {
 				email: "my-email@localhost.com",
@@ -156,7 +156,7 @@ describe("SSO", async () => {
 		expect(callbackURL).toContain("/dashboard");
 	});
 
-	it("should signin with SSO provider with domain", async () => {
+	it("should sign in with SSO provider with domain", async () => {
 		const res = await auth.api.signInSSO({
 			body: {
 				email: "my-email@test.com",
@@ -173,7 +173,7 @@ describe("SSO", async () => {
 		expect(callbackURL).toContain("/dashboard");
 	});
 
-	it("should signin with SSO provider with providerId", async () => {
+	it("should sign in with SSO provider with providerId", async () => {
 		const res = await auth.api.signInSSO({
 			body: {
 				providerId: "test",
@@ -463,7 +463,7 @@ describe("provisioning", async (ctx) => {
 		});
 	});
 
-	it("should signin with SSO provide with org slug", async () => {
+	it("should sign in with SSO provide with org slug", async () => {
 		const res = await auth.api.signInSSO({
 			body: {
 				organizationSlug: "localhost",
diff --git a/packages/better-auth/src/plugins/username/username.test.ts b/packages/better-auth/src/plugins/username/username.test.ts
index 99e9e16c61..4ccc547549 100644
--- a/packages/better-auth/src/plugins/username/username.test.ts
+++ b/packages/better-auth/src/plugins/username/username.test.ts
@@ -19,7 +19,7 @@ describe("username", async (it) => {
 		},
 	);
 
-	it("should signup with username", async () => {
+	it("should sign up with username", async () => {
 		const headers = new Headers();
 		await client.signUp.email(
 			{