send in (something)

To "send in" something means to submit it by mail or email. It's similar to the word "submit", but "submit" can also be used to describe giving something to a person by hand, whereas "send in" cannot.

You "send in" a résumé, an application, a payment, or some other official document. You submit it to someone who has authority.

This phrase can be ordered two ways: "send ___ in" or "send in ___":

Have you sent in your application yet?

I sent my rent check in last week.

But always put "it" and "that" before "in":

I can't remember if I sent it in.

This phrase appears in these lessons: