Meaning & use
watt
The standard unit of electrical or mechanical power, equal to one joule of energy per second.
See it in a sentence
The light bulb is rated at sixty watts, so it uses less power than the old model.
Solar panels on the roof generate up to three hundred watts on a sunny day.
A note on using this word
Named after the engineer James Watt; abbreviated with a capital W, as in 100W.
Words with a similar meaning
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