To Keep Company With
To Date, To Accompany
godan verb, intransitive verb
This word is a combination of 付く (to be attached) and 合う (to suit). You and another person almost seem to be attached at the hip because you suit each other so well, and maybe that's why you chose to keep company with each other in the first place.
付き合う is a versatile word for spending time or going along with someone. It's often romantic, like 彼と付き合っている (I'm dating him), but it can be totally neutral too, like 仕事仲間と付き合う (hang out with work friends).
From this, it can also extend to negative situations, like わがままに付き合う (put up with someone's selfishness) or 病気と付き合う (live with an illness). You're "keeping company" with this thing over time — even when it's inconvenient or difficult.
The reading comes from 付く and 合う, so if you remember those, you should be fine here.
人と付き合う
to associate with someone, to get along with someone
彼と付き合う
to go out with him, to date him
女性と付き合う
to go out with a woman, to date a woman
病気と付き合う
to live with an illness
上手に付き合う
to get along well
練習に付き合う
to help someone practice
買い物に付き合う
to accompany someone shopping
わがままに付き合う
to put up with someone's selfishness
人に付き合う
to accompany someone
彼と付き合うことにしたの。
I decided to start dating him.
ちょっと付き合ってくれない？
Mind coming along with me for a bit?
姉に付き合って買い物に行った。
I tagged along with my big sister on a shopping trip.
たまには子どものわがままに付き合ってあげてもいいんじゃない？
Don't you think it's okay to let a kid have their way once in a while?
彼は病気と戦うことをやめ、うまく付き合うことを選んだ。
He stopped fighting the illness and chose to live with it instead.
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