凍結 (tōketsu) means “freezing” | MotiTan Japanese Dictionary

More examples

冬は水道管の凍結に注意してください。fuyu wa mizu dō kan no tō ketsu ni chū i shi te ku da sa i

During winter, make sure the water pipes do not freeze.

Describes a liquid becoming solid because of low temperature.

氷結hyōketsu: The formation of ice when water or another liquid freezes.
凝固gyōko: The change of a liquid or other substance into a solid state.

水などの液体が低温によって固体になること。mizu na do no eki tai ga tei on ni yo tte ko tai ni na ru ko to

凍結 (tōketsu) is a Sino-Japanese compound of 凍 (tō, "freeze") and 結 (ketsu, "tie"), expressing a state fixed by freezing.

In formal Japanese, 凍結 (tōketsu) is used for water and other liquids, while the everyday verb 凍る (kōru) is often preferred for something that freezes.