#1 shorten v. make shorter than originally intended; reduce or retrench in length or duration; "He shortened his trip due to illness". wn
#2 shorten v. [abridge, foreshorten, abbreviate, cut, contract, reduce] reduce in scope while retaining essential elements; "The manuscript must be shortened". wn
#3 shorten v. make short or shorter; "shorten the skirt"; "shorten the rope by a few inches". wn
#4 shorten v. become short or shorter; "In winter, the days shorten". wn
#5 shorten v. [bowdlerize, bowdlerise, expurgate, castrate] edit by omitting or modifying parts considered indelicate; "bowdlerize a novel". wn
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