Solution

STAINING

2 clues

Discoloring

Word class: Common noun
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Colors - Light - Vision

Spotting

Word class: Common noun
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Colors - Light - Vision

Other solutions to Spotting

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