Common mistake missing hyphen in 'mail in'

Common Mistake: Missing Hyphen in 'Mail In'

One common mistake that people often make is forgetting to include a hyphen when using the term 'mail in'. This mistake can be seen in phrases such as 'mail in your application' or 'mail in your payment'.

It is important to note that when 'mail' is used as a verb and is followed by 'in', it should be hyphenated as 'mail-in'. This hyphen acts as a connector between the verb 'mail' and the preposition 'in', indicating that the action of mailing is being done in a specific manner.

The correct way to write the above phrases would be 'mail-in your application' and 'mail-in your payment'.


  • Please remember to mail-in your completed form before the deadline.
  • Don't forget to include a stamped envelope when you mail-in your payment.

Using the hyphen in 'mail-in' helps to clarify the meaning of the phrase and avoid any confusion. It is important to pay attention to such small details in writing to ensure accuracy and clarity.

Linguix Grammar Checker is an excellent tool that can help identify and correct such common mistakes, allowing you to write with confidence and precision.

missing hyphen in 'mail in' mistake examples

  • Incorrect:
    The postal crisis has states looking for alternatives to mail in ballots.

    The postal crisis has states looking for alternatives to mail-in ballots.

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