Solution

REFINE

2 clues

Improve

Word class: Verb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Improve

Purify

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

Other solutions to Purify

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