heater

noun

heat·​er ˈhē-tər 

1

: one that heats

especially : a device that imparts heat or holds something to be heated

2

: fastball

Examples of heater in a Sentence

Recent Examples on the Web

The 6-foot-by-12-foot plywood ice shanty, consisted of two wooden benches on either side with a small table in between, and a propane heater on high keeping the frigid temperatures at bay. —Robert Annis, Outside, 24 Feb. 2026

Craig, holding tight to both a portable heater and a homemade #Tendies4Life poster, didn’t have to worry with the morning commute traffic. —John Marks, Charlotte Observer, 24 Feb. 2026

The Lava hair dryer is made with volcanic lava and ceramic heater that provides a gentle, consistent heat during styling. —Tory Johnson, ABC News, 21 Feb. 2026

Eco effort Despite the constraints of the property’s 1960 construction and historic landmark status, the units have been modernized with on-demand hot water heaters and efficient mini-split heating and air-conditioning units to reduce fossil fuel use. —Condé Nast, Condé Nast Traveler, 20 Feb. 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing heater

• immersion heater
• quartz heater
• space heater
• water heater

Rhymes for heater

• beater
• cheater
• dieter
• eater
• liter
• litre
• meter
• metre
• neater
• praetor
• seater
• skeeter

Kids Definition

heater

noun

heat·​er ˈhēt-ər 

: a device that heats or holds something to be heated