Fetching details from the dictionary...

to associate with; to keep company with; to go out with; to go steady with; to get on with
to go along with; to follow someone's lead; to accompany someone; to compromise
高校の時から彼女と付き合っている。
I've been going out with her since high school.
彼女と三年間付き合った。
I dated her for three years.
近所の人とうまく付き合うのは大切だ。
Getting along with neighbors is important.