send in for

send in for (someone or something)

1. To submit or dispatch a request or order something to be delivered. I'm sending in for a new computer monitor that supposedly has the highest resolution on the market. I can fix it, but I'll have to send in for a new part.
2. To submit or dispatch something to some place in order for something to be done. In this usage, a noun or pronoun is used between "send" and "in." The built-in scanner on the printer isn't working anymore, so I'll have to send it in for repairs. It sounds like you'll need to send your watch in for an adjustment of the band.
3. To instruct or direct someone to enter some place to retrieve or receive something. In this usage, a noun or pronoun is used between "send" and "in." I'll send my intern in for the report when it's ready. Hi Martha, will you please send Tom in for his annual review?
4. To replace a player with someone else in a sporting event. In this usage, a noun or pronoun is used between "send" and "in." With such a strong lead, the coach decided to send the rookie in for the veteran quarterback. Send me in for Tom, Coach—I'm ready!
See also: send
Farlex Dictionary of Idioms.

send someone in for someone

to send someone into a game as a replacement for someone else. The coach sent Jill in for Alice, who was beginning to tire. Ted sent Bill in for Watty.
See also: send

send in for something

 and send off for something
to dispatch an order for something to a company or other body making a public offer of goods. I sent in for a new product that is supposed to make my hair grow back. Did you send in for that country-and-western CD as you said you would? I sent off for the proper contest entry forms.
See also: send
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • send in for (someone or something)
  • send into
  • send into (something or some place)
  • send into a state or condition
  • send (someone or something) by (some means)
  • send by
  • send after
  • send after (someone or something)
  • send ahead for
  • send ahead for (someone or something)