1.
relationship, connection
A link or association between people, things, or concepts.
二人の関係は良い。
The relationship between the two is good.
国際関係を学ぶ。
To study international relations.
人間関係がうまくいかなくて、仕事を辞めたいと思っている。
My personal relationships aren't going well, and I'm thinking of quitting my job.
2.
relevance, concern
Having to do with something; being related to a matter.
それは関係ない。
That has nothing to do with it.
Common expression
仕事関係の人と食事をした。
I had a meal with someone from work.
この問題は私には関係ないと思っていたけど、実は関係があった。
I thought this problem had nothing to do with me, but it actually did.
関係 means 'relationship' or 'connection' and functions as a suru-verb.
Common patterns:
- 〜と関係がある: to be related to ~
- 〜に関係なく: regardless of ~
- 関係ない: irrelevant, not my concern
- 〜関係: ~-related (e.g., 仕事関係)
Types of relationships:
- 人間関係: human relationships
- 親子関係: parent-child relationship
- 国際関係: international relations