Find Synonyms
heater Synonyms
Another word for heater
Choosing another word for heater depends on context, so the 20 synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
• noun (Context 1)
A device or apparatus that generates and radiates heat, used to raise the temperature of an enclosed space or a fluid.
Usage Example
"During the bitter winter nights, they relied on a small portable radiator to keep the bedroom warm."
Strongest
radiator
space heater
Strong
furnace
stove
boiler
Weak
warmer
• noun (Context 2)
A high-speed pitch in baseball, typically thrown with maximum velocity; a fastball.
Usage Example
"The rookie pitcher struck out the veteran batter with a 98-mph fastball right down the middle of the plate."
Strongest
fastball
Strong
hummer
smoke
cheese
• noun (Context 3)
A slang term for a handgun or firearm.
Usage Example
"In the classic noir film, the detective checked his coat pocket to make sure he was carrying his handgun before stepping into the alley."
Strongest
handgun
pistol
revolver
Strong
rod
gat
piece
iron
burner
strap
six-shooter
Opposites of heater
The opposite of heater shifts depending on context. Common opposites include:
air conditioner
cooler
changeup
off-speed pitch
chiller
curveball
refrigerator
knuckleball
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Heater. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/heater