To Wring Out, To Squeeze, To Narrow Down
transitive verb, godan verb
You've learned that the kanji 絞 means strangle. 絞る, on the other hand, means to wring out or to squeeze something like a towel, or to narrow down ideas.
しぼる
Your friend wants to wring out a towel, but before she does so she bows (しぼ) to the towel to show her respect for it.
母乳を絞りながら、コンロにやかんをかけました。
I put a kettle on the stove while pumping out my breast milk.
ぞうきんを絞った手を洗わないでそのまま食べ物を食べるなんて信じられない！
I can't believe that you eat food with hands that you didn't wash after wringing out a dust cloth.
意地悪な上司との関係をどうやって保つか、毎日知恵を絞っています。
I rack my brain every day about how to manage my relationship with my mean boss.