Definition of bud noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//bʌd//
    ; NAmE NAmE//bʌd//
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  1. 1 a small lump that grows on a plant and from which a flower, leaf or stem develops the first buds appearing in spring The tree is in bud already. CollocationsThe living worldAnimals animals mate/​breed/​reproduce/​feed (on something) fish/​amphibians swim/​spawn (= lay eggs) birds fly/​migrate/​nest/​sing insects crawl/​fly/​bite/​sting insects/​bees/​locusts swarm bees collect/​gather nectar/​pollen spiders spin/​weave a web snakes/​lizards shed their skins bears/​hedgehogs/​frogs hibernate insect larvae grow/​develop/​pupate an egg/​a chick/​a larva hatches attract/​find/​choose a mate produce/​release eggs/​sperm lay/​fertilize/​incubate/​hatch eggs inhabit a forest/​a reef/​the coast mark/​enter/​defend (a) territory stalk/​hunt/​capture/​catch/​kill preyPlants and fungi trees/​plants grow/​bloom/​blossom/​flower a seed germinates/​sprouts leaves/​buds/​roots/​shoots appear/​develop/​form flower buds swell/​open a fungus grows/​spreads/​colonizes something pollinate/​fertilize a flower/​plant produce/​release/​spread/​disperse pollen/​seeds/​spores produce/​bear fruit develop/​grow/​form roots/​shoots/​leaves provide/​supply/​absorb/​extract/​release nutrients perform/​increase/​reduce photosynthesisBacteria and viruses bacteria/​microbes/​viruses grow/​spread/​multiply bacteria/​microbes live/​thrive in/​on something bacteria/​microbes/​viruses evolve/​colonize something/​cause disease bacteria break something down/​convert something (into something) a virus enters/​invades something/​the body a virus mutates/​evolves/​replicates (itself) be infected with/​contaminated with/​exposed to a new strain of a virus/​drug-resistant bacteria contain/​carry/​harbour (especially US English) harbor bacteria/​a virus kill/​destroy/​eliminate harmful/​deadly bacteria See related entries: Plants
  2. 2a flower or leaf that is not fully open See related entries: Plants
  3. 3(North American English, informal) = buddy Listen, bud, enough of the wisecracks, OK?
  4. see also cotton bud, rosebud, taste bud
    Word Originnoun senses 1 to 2 late Middle English: of unknown origin. noun sense 3 mid 19th cent.: abbreviation of buddy.Idioms
    nip something in the bud
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    to stop something when it has just begun because you can see that problems will come from it
See the Oxford Advanced American Dictionary entry: bud