diff --git a/locales/en-US.yml b/locales/en-US.yml
index 3fe7b266a7..9b4ccb8ef0 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -411,6 +411,7 @@ aboutMisskey: "About Misskey"
 administrator: "Administrator"
 token: "Token"
 2fa: "Two-factor authentication"
+setupOf2fa: "Setup two-factor authentification"
 totp: "Authenticator App"
 totpDescription: "Use an authenticator app to enter one-time passwords"
 moderator: "Moderator"
@@ -1696,8 +1697,10 @@ _2fa:
   step1: "First, install an authentication app (such as {a} or {b}) on your device."
   step2: "Then, scan the QR code displayed on this screen."
   step2Click: "Clicking on this QR code will allow you to register 2FA to your security key or phone authenticator app."
+  step2Uri: "Enter the following URI if you are using a desktop program"
   step3Title: "Enter an authentication code"
   step3: "Enter the token provided by your app to finish setup."
+  setupCompleted: "Setup complete"
   step4: "From now on, any future login attempts will ask for such a login token."
   securityKeyNotSupported: "Your browser does not support security keys."
   registerTOTPBeforeKey: "Please set up an authenticator app to register a security or pass key."
@@ -1713,6 +1716,11 @@ _2fa:
   renewTOTPConfirm: "This will cause verification codes from your previous app to stop working"
   renewTOTPOk: "Reconfigure"
   renewTOTPCancel: "Cancel"
+  checkBackupCodesBeforeCloseThisWizard: "Before you close this window, please note the following backup codes."
+  backupCodes: "Backup codes"
+  backupCodesDescription: "You can use these codes to gain access to your account in case of becoming unable to use your two-factor authentificator app. Each can only be used once. Please keep them in a safe place."
+  backupCodeUsedWarning: "A backup code has been used. Please reconfigure two-factor authentification as soon as possible if you are no longer able to use it."
+  backupCodesExhaustedWarning: "All backup codes have been used. Should you lose access to your two-factor authentification app, you will be unable to access this account. Please reconfigure two-factor authentification."
 _permissions:
   "read:account": "View your account information"
   "write:account": "Edit your account information"