sending in

Verb

send in (third-person singular simple present sends in, present participle sending in, simple past and past participle sent in)

1. (historical) To give (one's name), present (one's card) when making a social call.
2. To cause (something) to be delivered, especially by post/mail.
3. To send (someone) into the thick of things, as
   • send in the cavalry
4. To send (troops) into battle.
5. To send (a batsman) onto the field to bat.