shortens
short-ens
verb
To make something or become shorter in length, duration, or amount.
"The days shorten considerably during autumn."
Thesaurus
Synonyms: expurgate, bowdlerise, castrate, bowdlerize, contract, abbreviate, reduce, cut, foreshorten, abridge
Antonyms: dilate, elaborate, enlarge, expand, expatiate, exposit, expound, flesh out, lengthen, lucubrate