informal

a tit-for-tat action is something bad that you do to someone because they have done something bad to you.

Six of the victims died in tit-for-tat attacks. (always before noun)

• join hands with someone
• join in
• Join the club!
• join the fray
• join the ranks of
• join the ranks of something
• join up
• joker in the pack
• joke's on
• joke's on someone
• judgment call
• juggling act
• juice up
• juice up something
• jump all over
• jump all over someone
• jump at
• jump at something
• jump bail
• jump down someone's throat
• jump down throat
• jump for joy
• jump in
• jump in at the deep end
• jump in with both feet