belt has 11 distinct synonyms spread across 5 of its 10 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is unbelt.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
endless loop of flexible material between two rotating shafts or pulleys
a band to tie or buckle around the body (usually at the waist)
an elongated region where a specific condition or characteristic is found
“a belt of high pressure”
ammunition (usually of small caliber) loaded in flexible linked strips for use in a machine gun
deliver a blow to
“He belted his opponent”
fasten with a belt
Synonyms, antonyms and the broader and narrower relations for belt come from Princeton University’s WordNet. Full sources and licences.
“belt your trousers”