raise has 48 distinct synonyms spread across 19 of its 31 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 2 recorded opposites are lower, level.
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.
collect funds for a specific purpose
“The President raised several million dollars for his college”
summon into action or bring into existence, often as if by magic
“raise the specter of unemployment”
create a disturbance, especially by making a great noise
“raise hell”
bid (one's partner's suit) at a higher level
pronounce (vowels) by bringing the tongue closer to the roof of the mouth
“raise your `o'”
establish radio communications with
“They managed to raise Hanoi last night”
multiply (a number) by itself a specified number of times: 8 is 2 raised to the power 3
bring (a surface or a design) into relief and cause to project
“raised edges”
an upward slope or grade (as in a road)
“the car couldn't make it up the rise”
Synonyms, antonyms and the broader and narrower relations for raise come from Princeton University’s WordNet. Full sources and licences.