Harden and Ice up

Harden verb - To become physically firm or solid.

Ice up and harden are semantically related In some cases you can use "Ice up" instead a verb "Harden".

Nearby Words: hard, hardness, hardening, hardener

Ice up verb - Become covered with a layer of ice; of a surface such as a window.

Harden and ice up are semantically related in make cold enough to become solid topic. You can use "Harden" instead a verb "Ice up".