noun, noun, used as a suffix
degree (angle, temperature, scale)
Used for numerical degrees in angles, temperature, coordinates, and similar scales. Often appears as a suffix.
今日の気温は30度を超えた。
Today's temperature exceeded 30 degrees.
直角は90度です。
A right angle is 90 degrees.
counter
counter for occurrences
Counts how many times something happens. Used with numbers and often with verbs like ~する or ~がある.
彼は三度目の挑戦で合格した。
He passed on his third attempt.
この映画は二度見た。
I've seen this movie twice.
noun, noun, used as a suffix
strength (of glasses); prescription
Refers to the lens power of eyeglasses or contact lenses. Often used in phrases like 度が強い/弱い.
最近、目が悪くなって、眼鏡の度が合わなくなった。
My eyesight has gotten worse lately, and my glasses prescription no longer matches.
度の強いレンズは厚くなります。
Lenses with a strong prescription become thick.
noun, noun, used as a suffix
alcohol content; ABV
Indicates the percentage of alcohol in a drink. Commonly seen on labels as ~度.
この日本酒はアルコール度数が15度です。
This sake has an alcohol content of 15%.
ビールは普通5度前後だ。
Beer is usually around 5% alcohol.
noun
Abstract use for the level or bounds of something. Often appears in set phrases like 度を越す/過ごす (to go too far).
See also: 度を過ごす
冗談も度を過ごすと相手を傷つける。
Even a joke can hurt someone if it goes too far.
彼の親切には度がある。
His kindness has its limits.
noun
Rare, mostly in the fixed expression 度を失う (to lose one's composure). Not used freely in modern Japanese.
See also: 度を失う
突然の知らせに彼は度を失った。
He lost his composure at the sudden news.
From Middle Chinese 度 (duH). The character originally meant 'to measure' or 'law/rule', and developed the sense of 'degree' in Japanese.