branch

¹ American  

[branch, brahnch] / bræntʃ, brɑntʃ /

noun

1. a division or subdivision of the stem or axis of a tree, shrub, or other plant.

   Synonyms:

   shoot, offshoot

2. a limb, offshoot, or ramification of any main stem.

   the branches of a deer's antlers.

3. any member or part of a body or system; a section or subdivision.

   the various branches of learning.

4. a local operating division of a business, library, or the like.

5. a line of family descent stemming from a particular ancestor, as distinguished from some other line or lines from the same stock; a division of a family.

6. a tributary stream or any stream that is not a large river or a bayou.

7. Chiefly South Midland and Southern U.S. branch water.

8. Linguistics. (in the classification of related languages within a family) a category of a lower order than a subfamily and of a higher order than a subbranch or a group, as the Germanic branch of Indo-European.

9. Computers. a point in a computer program where the computer selects one of two or more instructions to execute, according to some criterion.

10. Nautical. a warrant or license permitting a pilot to navigate in certain waters.

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verb (used without object)

1. to put forth branches; spread in branches.

2. to divide into separate parts or subdivisions; diverge.

   The main road branches off to the left.

   Synonyms:

   subdivide, ramify

3. to expand or extend, as business activities.

   The bank has plans to branch throughout the state.

verb (used with object)

1. to divide into branches or sections.

2. to adorn with needlework; decorate with embroidery, as in textile fabrics.

verb phrase

1. branch out to expand or extend, as business activities, pursuits, interests, etc..

   The business is branching out into computers.

-branch ² American  

1. a combining form for forming nouns and adjectives that denote gill formations or animals having gill formations.

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branch ¹ British  

/ brɑːntʃ /

noun

1. a secondary woody stem arising from the trunk or bough of a tree or the main stem of a shrub

2. a subdivision of the stem or root of any other plant

3. an offshoot or secondary part

   a branch of a deer's antlers

4. 1. a subdivision or subsidiary section of something larger or more complex

      branches of learning

      branch of the family

   2. ( as modifier )

      a branch office

5. any small stream

6. maths a section of a curve separated from the rest of the curve by discontinuities or special points

7. Also called: jump.  computing a departure from the normal sequence of programmed instructions into a separate program area

8. an alternative route in an atomic or nuclear decay series

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verb

1. (intr) (of a tree or other plant) to produce or possess branches

2. (of stems, roots, etc) to grow and diverge (from another part)

3. to divide or be divided into subsidiaries or offshoots

4. to diverge from the main way, road, topic, etc

branch- ² British  

combining form

1. (in zoology) indicating gills

   lamellibranch

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branch Idioms  

More idioms and phrases containing branch

• olive branch
• root and branch

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Usage

What is a basic definition of branch? A branch is a protruding part of a tree, something that juts out from a main part, or a division of a group or organization. The word branch has many other senses as a noun and a verb. For most trees, underground roots connect to the thick trunk that extends toward the sky. Jutting out of the trunk are branches, smaller limbs of the tree. Main branches, also called boughs, have smaller extensions with leaves on them. These are also called branches, but more often called twigs.

• Used in a sentence: I watched my cat climb the branches of the oak tree. 

Branch also refers to similar offshoots from objects that aren’t trees.

• Used in a sentence: The rope got tangled in the branches of the buck’s antlers. 

In a more figurative sense, branch is used to mean a division of a main group or organization.

• Real-life examples: The Army, Navy, and Air Force are three major branches of the United States military. Botany, zoology, and microbiology are three major branches of biology.
• Used in a sentence: We learned in history class that the government is divided into three branches: the executive, the legislative, and the judicial.

Related Words

Branch, bough, limb refer to divisions of a tree. Branch is general, meaning either a large or a small division. Bough refers only to the larger branches: a bough loaded with apples. A limb is a large primary division of a tree trunk or of a bough: to climb out on a limb.

Other Word Forms

• branchless adjective
• branchlike adjective
• branchy adjective
• interbranch adjective
• multibranched adjective
• outbranch verb (used with object)
• unbranched adjective
• unbranching adjective
• underbranch noun
• well-branched adjective

Etymology

Origin of branch¹

First recorded in 1250–1300; Middle English bra(u)nche, from Anglo-French; Old French branche, from Late Latin branca “paw,” of uncertain origin

Origin of -branch²

< French -branche, New Latin -branchia, from Latin branchiae “gills” ( see branchia ( def. ))

Explanation

A branch can mean the "arm" of a tree, or any other kind of arm––a branch of a bank is a division of the bank. Branch also works as a verb. If you play soccer every day after school and you want to "branch out" athletically, you might consider playing tennis. You might turn onto a little road that branches off a main one. A branch of a river is called a tributary.

Example Sentences

One branch of the pipeline runs through Belarus and Poland to Germany, while another branch runs through Ukraine to Hungary.

From Barron's • Apr. 22, 2026

DNA analysis confirmed that this population forms its own separate evolutionary branch.

From Science Daily • Apr. 22, 2026

But if it’s something much bigger than a fallen tree branch, I’ll know I can call my insurance agent.

From MarketWatch • Apr. 21, 2026

On Monday she said: "I cannot discuss the terms of the settlement, but generally I am glad that my employer has finally decided to extend an olive branch to me."

From BBC • Apr. 13, 2026

From it sprouted another, smaller branch, and from that a fan of thinner branches.

From "Impossible Creatures" by Katherine Rundell

Related Words

• arm
• bureau
• chapter
• division
• member
• office
• section
• subsidiary
• wing