say it: SHAWR-tuhn
shorten is a verb meaning "make shorter than originally intended; reduce or retrench in length or duration". It carries 5 recorded senses.
reduce in scope while retaining essential elements
“The manuscript must be shortened”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for shorten come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.