Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “watt”


noun [C] uk   /wɒt/ us    /wɑːt/ (written abbreviation W)
the standard measure of electrical power: Do you want 60-watt light bulbs for this room?Units of electrical powerMiscellaneous units of measurement
noun [U] uk   /ˈwɒt.ɪdʒ/ us    /ˈwɑː.t̬ɪdʒ/
For lower wattage ovens, heating time must be increased.Units of electrical power
(Definition of watt from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of watt?
Add Cambridge dictionaries to your browser to your website

Definitions of “watt” in other dictionaries

SMART Thesaurus: Electricity - units

“watt”: synonyms and related words:

You can also find related words, phrases, and synonyms in the topics:

Word of the Day


a type of dark brown beer with a bitter taste

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More