Solution

SOLIDIFY

2 clues

Harden

Word class: Verb
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Materials, Science

Other solutions to Harden

Set

Word class: Verb
Nature of clue: Synonym
Difficulty: Medium
Sources: Boatload Puzzles
Topics: Materials, Science

Other solutions to Set

Words are categorized by artificial intelligence: there can be mistakes.