(US, military) To reenlist. / (informal) To renew, e.g. library book, a lease, a contract

(US, military) One who reenlists.

(Internet, informal) to reupload

(Internet, informal) a reupload (a file which has been reuploaded)

(US) To renegotiate a contract. / (slang) To refill one's drug stash.

(slang) A resupply of a batch of drugs to be sold on the street

Third-person singular simple present indicative form of re-up

plural of re-up

present participle of re-up

simple past tense and past participle of re-up