degree (angle, temperature, scale)
Used for numerical degrees in angles, temperature, coordinates, and similar scales. Often appears as a suffix.
It seems the temperature will rise to 35 degrees tomorrow.
Today's temperature exceeded 30 degrees.
A right angle is 90 degrees.
counter for occurrences
Counts how many times something happens. Used with numbers and often with verbs like ～する or ～がある.
He passed on his third attempt.
I've seen this movie twice.
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.
My eyesight has gotten worse lately, and my glasses prescription no longer matches.
Lenses with a strong prescription become thick.
alcohol content; ABV
Indicates the percentage of alcohol in a drink. Commonly seen on labels as ～度.
This sake has an alcohol content of 15%.
Beer is usually around 5% alcohol.
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
Even a joke can hurt someone if it goes too far.
His kindness has its limits.
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
He lost his composure at the sudden news.
He watched that movie three times.
A big festival is held once every three years.
These glasses have such a strong prescription that they give me a headache.
This whiskey is as strong as 40% ABV.
His jokes always go too far.
度数 is the more technical term for a numerical degree, frequency, lens power, or alcohol percentage, while 度 is the everyday, more casual word for the same idea.
回 is the plain, standard counter for occurrences, while 度 carries a slightly more formal or emphatic tone and shows up in set phrases like 一度 and 二度.
度 read as たび means 'time/occasion' in expressions like 会う度に, while 度 read as ど is the formal counter for degrees or for counting occurrences in numerical contexts like 三度.
degree; extent; level; about; approximately
this time; this occasion; now · next time; another time; soon · recently; lately; the other day
system; institution; organization
fiscal year; financial year · academic year; school year · model year; product year
speed; velocity; pace; rate · velocity
Standard kanji form for all senses.
From Middle Chinese 度 (duH). The character originally meant 'to measure' or 'law/rule', and developed the sense of 'degree' in Japanese.
again; once more; a second time
never again
angle
frequency; rate of occurrence
concentration; density · cardinality
name recognition; degree of familiarity; popularity
precision; accuracy
seismic intensity
strength; intensity · strong; powerful; intense; extreme
sensitivity; reception quality · film speed; ISO sensitivity
density
each time; every time; always · thank you for your patronage; welcome (in a shop) · hello (when visiting a home); I'm coming in
limit; bounds; maximum
excessive; immoderate; too much
humidity
resolution (of a display, printer, scanner, etc.) · degree of understanding; how well one understands
moderate; proper; suitable
severe; serious; profound
courage; nerve; guts
degree; extent; level
each time; whenever