Heater
nounA device that produces warmth, used to raise the temperature of a room, water, or air.
How to spell heater
6 letters · 2 syllables
How to pronounce heater
Say the part in capitals loudest.
What does heater mean?
- nounA device that produces warmth, used to raise the temperature of a room, water, or air.
Heater in a sentence
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The office heater broke down on the coldest morning of the year.
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He switched on the portable heater to take the chill off the spare room.
Where does heater come from?
Language of origin: Germanic
The word is built from the native English noun and verb 'heat' plus the suffix '-er', which forms the name of a person or device that performs an action. 'Heat' descends from the Old English 'hǣtu', meaning warmth or hotness, which itself grew from the same Germanic root that gave us 'hot'. The instrument-naming '-er' is one of the oldest and most productive endings in English, the same one in 'cooker', 'toaster', and 'cooler'. 'Heater' in the sense of a warming appliance came into common use only after such devices existed, becoming widespread from the nineteenth century onward as stoves, radiators, and electric elements spread through homes. Because both parts are plain, familiar English elements, the spelling holds no real surprises beyond keeping the double-vowel 'ea' of 'heat'.
How the word is built
- heat (warmth, from Old English hǣtu)
- -er (agent/instrument suffix: a thing that does the action)
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