To Shorten

1. (transitive) To make shorter; to abbreviate.
2. (intransitive) To become shorter.
3. (transitive) To make deficient (as to); to deprive (of).
4. (transitive) To make short or friable, as pastry, with butter, lard, etc.
5. (transitive) To reduce or diminish in amount, quantity, or extent; to lessen.
6. (nautical, transitive) To take in the slack of (a rope).
7. (nautical, transitive) To reduce (sail) by taking it in.

Antonyms

• extend
• lengthen