godan verb (-ru), intransitive verb
harden; solidify
Physical change from soft or liquid to solid, such as concrete, jelly, or wax.
セメントが固まるまで触らないでください。
Please don't touch it until the cement hardens.
冷蔵庫に入れたらゼリーが固まった。
The jelly solidified after I put it in the fridge.
godan verb (-ru), intransitive verb
become firm; become certain
Abstract use for plans, opinions, or resolve becoming settled or definite.
旅行の日程がようやく固まった。
The travel itinerary has finally become firm.
彼の決心は固まっている。
His resolve is firm.
godan verb (-ru), intransitive verb
gather together; huddle
People or animals clustering in one place, often for warmth or solidarity.
寒くて、みんなストーブの前に固まった。
It was cold, so everyone huddled together in front of the stove.
ファンが選手の周りに固まっている。
Fans are gathered around the player.
godan verb (-ru), intransitive verb
Computing: a program or system becomes unresponsive.
アプリが固まって動かなくなった。
The app froze and stopped working.
パソコンがよく固まるので買い替えたい。
My computer freezes often, so I want to replace it.