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• bud
  bud

  noun
• Bud
  Bud

  noun

  a male given name.

bud

¹ American  

[buhd] / bʌd /

noun

1. Botany.

   1. a small axillary or terminal protuberance on a plant, containing rudimentary foliage leaf bud, the rudimentary inflorescence flower bud, or both mixed bud.

   2. an undeveloped or rudimentary stem or branch of a plant.

2. Zoology. (in certain animals of low organization) a prominence that develops into a new individual, sometimes permanently attached to the parent and sometimes becoming detached; gemmule.

3. Mycology. a small, rounded outgrowth produced from a fungus spore or cell by a process of asexual reproduction, eventually separating from the parent cell as a new individual: commonly produced by most yeast and a few other fungi.

4. Anatomy. any small rounded part.

5. an immature or undeveloped person or thing.

6. Slang. marijuana, especially potent marijuana from the buds, or flowering tops, of the hemp plant.

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verb (used without object)

budded, budding

1. to put forth or produce buds.

2. to begin to develop.

3. to be in an early stage of development.

verb (used with object)

budded, budding

1. to cause to bud.

2. Horticulture. to graft by inserting a single bud into the stock.

idioms

1. in the bud, in an immature or undeveloped state: Also in bud.

   a Shakespeare in the bud.

2. nip in the bud, to stop (something) in the beginning of its development.

   The rebellion was nipped in the bud.

bud ² American  

[buhd] / bʌd /

noun

1. brother; buddy (used in informal address, as to one's brother or to a man or boy whose name is not known to the speaker).

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Bud ³ American  

[buhd] / bʌd /

Or Budd

noun

1. a male given name.

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bud ¹ British  

/ bʌd /

noun

1. informal short for buddy

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bud ² British  

/ bʌd /

noun

1. a swelling on a plant stem consisting of overlapping immature leaves or petals

2. 1. a partially opened flower

   2. ( in combination )

      rosebud

3. any small budlike outgrowth

   taste buds

4. something small or immature

5. an asexually produced outgrowth in simple organisms, such as yeasts, and the hydra that develops into a new individual

6. a slang word for marijuana

7. at the stage of producing buds

8. to put an end to (an idea, movement, etc) in its initial stages

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verb

1. (intr) (of plants and some animals) to produce buds

2. (intr) to begin to develop or grow

3. (tr) horticulture to graft (a bud) from one plant onto another, usually by insertion under the bark

bud Scientific  

/ bŭd /

1. A small swelling on a branch or stem, containing an undeveloped shoot, leaf, or flower. Some species have mixed buds containing two of these structures, or even all three.

2. ◆ Terminal buds occur at the end of a stem, twig, or branch.

3. ◆ Axillary buds, also known as lateral buds, occur in the axils of leaves (in the upper angle of where the leaf grows from the stem).

4. ◆ Accessory buds often occur clustered around terminal buds or above and on either side of axillary buds. Accessory buds are usually smaller than terminal and axillary buds.

5. A small rounded outgrowth on an asexually reproducing organism, such as a yeast or hydra, that is capable of developing into a new individual.

6. See more at budding

7. A tiny part or structure, such as a taste bud, that is shaped like a plant bud.

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1. To form or produce a bud or buds.

bud More Idioms  

1. see nip in the bud.

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Other Word Forms

• budder
  noun
• budless
  adjective
• budlike
  adjective
• nonbudding
  adjective

Etymology

Origin of bud¹

First recorded in 1350–1400; Middle English budde, bodde “bud, spray, pod”; further origin uncertain; perhaps from Middle Dutch botte “bud,” or Old French bout “tip, end”

Origin of bud²

An Americanism dating back to 1850–55; back formation from buddy

Explanation

The young part of a plant that's almost ready to flower or unfurl new leaves is called the bud. As a verb, bud also means to grow or develop. You will see the word bud most often in reference to plants, but it is also used metaphorically to refer to something that is still maturing: a "budding career," for instance, or a "budding romance." Scientists use bud to indicate a new formation of growth or something that splits apart to form a duplicate of itself, like a cell.

Example Sentences

And with Mack’s career being renewed on a year-to-year basis, Mesidor will get the chance to learn from Mack, Tuli Tuipulotu and Bud Dupree before seeing a likely starting role in the seasons ahead.

From Los Angeles Times • Apr. 23, 2026

Ecologist Bud Freeman first came across Micropterus pucpuggy, now called Bartram's bass, back in the 1980s.

From Science Daily • Mar. 23, 2026

US actor Bud Cort, best known for his role in the 1971 cult classic Harold and Maude, has died aged 77.

From BBC • Feb. 11, 2026

Bud signs up for church wellness counseling and immediately falls in love with his mousy group leader.

From The Wall Street Journal • Jan. 7, 2026

I heard Bud Searcy’s talk to Mama when they rode up, but I was hurting too bad even to roll over and look out the door.

From "Old Yeller" by Fred Gipson