1 a black and yellow flying insect that can sting. Bees live in large groups and make honey (= a sweet sticky substance that is good to eat)a swarm of beesa bee stingBees were buzzing in the clover. see also beehive, beeswax, bumblebee, queen bee2 (North American English) a meeting in a group where people combine work, competition and pleasurea sewing bee see also spelling bee
the bee's knees(informal) an excellent person or thingShe thinks she's the bee's knees (= she has a very high opinion of herself).
more at the birds and the bees at bird, busy as a bee at busy adjective