solidify

Everyday

1. To solidify is to become solid, or to make something become solid, usually when a liquid cools or freezes. tree →
2. To solidify a plan, friendship or idea is to make it firmer and more certain. tree →

In the lessons

In science lessons on states of matter it is the change from liquid to solid (freezing): water solidifies into ice at 0 °C, lava solidifies into rock, melted chocolate solidifies in the fridge. It is the opposite of melting. Phrases: «solidify into», «allow to solidify», «solidify a friendship».

Examples

• Water solidifies into ice at 0 °C. tree →
• When lava cools, it solidifies into rock. tree →
• Put the jelly in the fridge to solidify. tree →
• The melted wax solidified into a candle. tree →
• Candle wax melts when hot and solidifies when it cools. tree →
• Working on the project together solidified their friendship. tree →
• Melted chocolate solidifies as it cools. tree →

Note

Spelling: solidifies, solidified (y changes to i). Noun: solidification. Opposite: melt. Freezing is solidifying, even for hot things like metal or lava, which «freeze» at high temperatures.