roots /ɹuːts/noun 3phrases 1 noun3 •the people someone's family came from, and the places and culture they belonged toI have both Irish and German roots. •Beginnings; origin.Jazz has its roots in blues. •Grown-out hair, often of a grey or natural colour.I just coloured my hair and already my roots are showing. Phrases with roots put down rootsTo establish oneself in a place; to become settled.