freeze has 10 distinct synonyms spread across 7 of its 14 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 boil, unfreeze.
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.
stop moving or become immobilized
“When he saw the police car he froze”
change to ice
“The water in the bowl froze”
be cold
“I could freeze to death in this office when the air conditioning is turned on”
cause to freeze
“Freeze the leftover food”
change from a liquid to a solid when cold
“Water freezes at 32 degrees Fahrenheit”
prohibit the conversion or use of (assets)
“Blocked funds”
suddenly behave coldly and formally
“She froze when she saw her ex-husband”
the withdrawal of heat to change something from a liquid to a solid
weather cold enough to cause freezing
1 of the 14 recorded senses carries no synonym, antonym or related term, so it is not shown above. Every sense, with its definition and examples, is on the full entry for freeze.
Synonyms, antonyms and the broader and narrower relations for freeze come from Princeton University’s WordNet. Full sources and licences.
fixing (of prices or wages etc) at a particular level
“a freeze on hiring”