blossom UK /ˈblɒs.əm/US /ˈblɑ.səm/noun 4verb 2forms 4phrases 2 noun4 •A flower, especially one indicating that a fruit tree is fruiting; (collectively) a mass of such flowers.The blossom has come early this year. •The state or season of producing such flowers.The orchard is in blossom. •(figurative) A blooming period or stage of development; something lovely that gives rich promise. •The colour of a horse that has white hairs intermixed with sorrel and bay hairs. verb2 •To have, or open into, blossoms; to bloom.The Utricularia vulgaris or bladder-wort, a yellow pea-like flower, has blossomed in stagnant pools. — 1851 •To begin to thrive or flourish.A quiet, studious man, rich in the wisdom that is better than learning, the charity which calls all mankind "brother," the piety that blossoms into character, making it august and lovely. — 1869 formsblossomed · blossoming · blossometh · blossoms Phrases with blossom blossom forthTo bloom. blossom outTo blossom, to show beauty.