を合わせる

to align; to bring together; to adjust or match something to something else

→ を
phrase Uncommon #10,631
to align; to bring together; to adjust or match something to something else The exact meaning depends on the noun before を: it can mean to adjust something to match, put things together, coordinate, join forces, or bring something into focus. The form を合わせる is usually used as part of a larger expression, such as 力を合わせる (join forces), 目を合わせる (make eye contact), or ピントを合わせる (focus).
JA: 私は望遠鏡のピントを合わせる。
EN: I focus the telescope.

この服にはどんなアクセサリーを合わせるつもり

What accessories are you planning to pair with this outfit?

そいつ何かを合わせるなら白ワインがいいね

If you're pairing it with something, white wine would be good.

— アトランティス 失われた帝国 (2001)

台本俳優じゃなくて俳優台本を合わせるんだ

You adapt the script to the actors, not the actors to the script.

— ラ・ラ・ランド (2016)