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meeting together; introduction
costarring; appearing together
being matched; facing off
両家の親族で顔合わせをした。
The relatives from both families met for the first time.
新チームの顔合わせが本社の会議室で始まった。
The new team's first meeting kicked off in the head office conference room.
監督との顔合わせでキャストが緊張した面持ちで挨拶した。
At the meet-and-greet with the director, the cast offered tense greetings.