Synonyms for Shortens:

v.

•curtails (verb)
fragments, minimizes, discontinues, reduces.
•decreases (verb)
compresses, abates, diminishes, erodes, drains, abbreviates, lessens, decrements, abridges, deflates, depletes, dies down, concentrates, lowers, contracts, deducts, recedes, shrinks, compacts, dwindles, curtails, truncates, decreases, subsides.
•diminishes (verb)
Clips, shears, tapers, downgrades, condenses, prunes, pares, lightens, nips, shaves, trims, bobs, crops, weeds, Culls.
•lowers (verb)
deepens, submerges, drops, depresses, plunges.
•shortens (verb)
belittles.