1A preparatory meeting or briefing where people discuss and settle plans or details in advance; a common business term, used as "打ち合わせをする" (to have a meeting).
午後2時にクライアントと打ち合わせがあります。
I have a meeting with the client at 2 p.m.
新製品の打ち合わせのために資料を作っておいてください。
Please prepare the materials for the new-product meeting in advance.
打ち合わせで仕様と納期を最終確認した。
We confirmed the specifications and delivery date at the meeting.
明日の打ち合わせには、プロジェクトリーダーも参加します。
The project leader will also join tomorrow's meeting.
2The overlapping front part of a garment, such as a coat or jacket — a technical term in clothing.
コートの打ち合わせがずれていたので、仕立て屋に直してもらった。
The coat's front overlap was misaligned, so I had the tailor fix it.
3An archaic sense meaning to fit or match two things exactly. Essentially obsolete in modern Japanese — practically never used with this meaning today.