介
jammed in, shellfish, mediate, concern oneself with
Readings
On'yomi
- カイ
Kun'yomi
—
Nanori
- すけ
- ゆき
Meaning
介 centers on being positioned between two things: physically jammed in, acting as a mediator, or involving oneself in a situation. The shellfish sense is a separate, less common meaning that does not clearly connect to the core idea of intermediacy.
Most common words using 介
20 of 131- 紹介しょうかいN5
introduction; presentation; referral; showcase (of a product)
- 介護かいごN2
nursing; care; caregiving; caring
- 介入かいにゅうN1
intervention
- 厄介やっかいN3
trouble; burden; nuisance; bother; worry
- 介するかいする
to use as an intermediary
- 仲介ちゅうかいN1
agency; intermediation
- 魚介ぎょかい
marine products; seafood; fish and shellfish
- 媒介ばいかい
mediation; agency; serving as a medium; acting as an intermediary; acting as a go-between
- 介すかいす
to use as an intermediary; to mediate; to assist
- 介助かいじょ
help; assistance; aid
- 介抱かいほうN1
nursing; looking after
- お節介おせっかいN1
meddling; meddlesomeness; nosiness; interference; officiousness
- 介在かいざい
existing (between); interposition; intervention; involvement
- 一介いっかい
a mere ...; only a ...; insignificant
- 介錯かいしゃく
beheading (as the ending to a seppuku)
- 介添えかいぞえ
helper (e.g. for a sick person); assistant
- 魚介類ぎょかいるい
marine products; seafood; fish and shellfish
- 自己紹介じこしょうかいN2
self-introduction
- 紹介文しょうかいぶん
introductory text; introductory essay
- 紹介者しょうかいしゃ
person who introduces someone; introducer
Study
Etymology
介 is traditionally explained as a person 人 flanked by two marks representing boundaries or armor, conveying the idea of being between or mediating. The shellfish meaning is likely a borrowing or separate development.
Meaning mnemonic
Picture a person 人 standing between two vertical barriers, jammed in and forced to mediate. The two strokes on either side represent the boundaries they are caught between.
Reading mnemonic
For カイ, imagine a mediator trying to calm a heated argument by shouting 'KAI!' like a sharp, interrupting sound. The mediator is jammed between the two sides, and the sound 'KAI' breaks the tension.