Translation guide
The English word 'cusp' has several distinct meanings: a point of transition, a pointed end, and a specific term in astrology and dentistry. This guide helps learners express these concepts naturally in Japanese.
Expressing the idea of being at a boundary between two states, periods, or conditions, often implying imminent change.
Literally 'boundary line', used for the dividing point between two things or states. Common and natural.
彼は子供と大人の境目にいる。
He is on the cusp between childhood and adulthood.
Means 'transition period'. Suitable for describing a phase of change, often in societal or technological contexts.
その技術は実用化の過渡期にある。
The technology is on the cusp of practical application.
Means 'critical moment' or 'brink'. Carries a sense of urgency or crisis, often used in dramatic contexts.
会社は倒産の瀬戸際に立たされている。
The company is on the cusp of bankruptcy.
Referring to a pointed or projecting part, such as the cusp of a tooth or a leaf.
The dividing line between two zodiac signs or houses.
Katakana loanword directly from English 'cusp'. Widely understood in astrological contexts.
彼女は牡羊座と牡牛座のカスプに生まれた。
She was born on the cusp of Aries and Taurus.
Means 'boundary line'. Can be used to describe the cusp between signs, though less specific than カスプ.
星座の境界線に生まれた人は、両方の特徴を持つと言われる。
People born on the cusp of zodiac signs are said to have traits of both.
The pointed or rounded projection on the chewing surface of a tooth.
Technical term for 'cusp' in dentistry. Used by professionals.
この歯の咬頭は摩耗している。
The cusp of this tooth is worn down.
More formal anatomical term for a cusp or ridge on a tooth. Rare outside medical contexts.
第一大臼歯には五つの歯冠隆起がある。
The first molar has five cusps.
There are small cusps on the edge of the leaf.