プログレッシブ和英中辞典(第4版)の解説
たづな【手綱】
&fRoman1;a bridle; (the) reins
馬の手綱をとる
hold a horse by the bridle／hold the reins
手綱を引く
rein in a horse
彼は手綱をゆるめて馬の好きなようにさせた
He gave the horse 「free rein [its head].
&fRoman2;〔人を操る力〕
子供たちの手綱を締める
tighten the reins on one's children
彼は奥さんにしっかりと手綱を握られている
His wife has him firmly under control.
彼はちょっとでも手綱を緩めると怠け始める
As soon as you let up on the reins, he grows idle.／The moment you relax your supervision, he becomes lazy.