Japanese word

ワット

Pronunciation

Romajiwatto

Meaning

  • nounwatt

Example

この電球は六十ワットです。ko no den kyū wa roku jū wa tto de su

This light bulb is sixty watts.

Illustration for ワット (watt)

More examples

この電子レンジは千ワットで動きます。ko no den shi re n ji wa sen wa tto de ugo ki ma su

This microwave runs at one thousand watts.

Core concept

Measures how quickly energy is used or delivered rather than how much energy is involved in total.

Common phrases

  • 何ワットnan wa tto

    how many watts

  • ワット数wa tto sū

    wattage

Definition in Japanese

電力や仕事率を表す単位で、一ワットは一秒間に一ジュールのエネルギーを移す割合に当たる。den ryoku ya shi goto ritsu o arawa su tan i de ichi wa tto wa ichi byō kan ni ichi jū ru no e ne ru gī o utsu su wari ai ni a ta ru

Word origin

The Japanese loanword ワット (watto) comes from English watt, named after Scottish inventor James Watt.

Usage tips

  • Unlike a joule, a watt measures the rate of energy use, so a higher-watt lamp generally uses electricity faster while it is on.

Word lists with this word