swarm

1 of 3

noun

ˈswȯrm 

1

a

: a great number of honeybees emigrating together from a hive in company with a queen to start a new colony elsewhere

b

: a colony of honeybees settled in a hive

2

a

: a large number of animate or inanimate things massed together and usually in motion : throng

swarms of sightseers

a swarm of locusts

a swarm of meteors

b

: a number of similar geologic features or phenomena close together in space or time

a swarm of dikes

an earthquake swarm

swarm

2 of 3

verb (1)

swarmed; swarming; swarms

intransitive verb

1

: to form and depart from a hive in a swarm

2

a

: to move or assemble in a crowd : throng

b

: to hover about in the manner of a bee in a swarm

3

: to contain a swarm : teem

swarming with bugs

transitive verb

1

: to fill with a swarm

2

: to beset or surround in a swarm

players swarming the quarterback

swarmer noun

swarm

3 of 3

verb (2)

swarmed; swarming; swarms

intransitive verb

: to climb with the hands and feet

specifically : shin

swarm up a pole

transitive verb

: to climb up : mount

Synonyms

Noun

• throng
• flock
• crowd
• horde

Verb (1)

• flock

Verb (2)

• climb
• scramble
• clamber

Examples of swarm in a Sentence

Noun

a swarm of tourists descends upon the island every summer

Verb (1)

meeting little resistance, the pirates swarmed the decks of the merchant ship

at this time of year that Mexican resort swarms with college students on spring break

Verb (2)

one of the physical challenges had competitors swarming over a pile of logs

Recent Examples on the Web

Noun

The floor is peppered with spare knee pads and helmets, and a swarm of roller derby players outfitted in protective armor congregate in the center of the warehouse. —Grace Tucker, The Enquirer, 2 July 2025

If a task can be performed in more than one way by equal peers working together—much in the way an ant colony or swarm of bees works—then the system is resistant to censorship and hardware faults and has service continuity due to economic sustainability. —Expert Panel®, Forbes.com, 1 July 2025

Verb

Some stellar clusters pack thousands of stars into a small volume of space, and the bustling galactic center swarms with stars. —Phil Plait, Scientific American, 26 June 2025

Three luxury hotels are officially booked and some water taxis reserved for the wedding, the local press is swarming the event with paparazzi and mega‑yachts crowding canals. —Kathleen Wong, USA Today, 25 June 2025

Word History

Etymology

Noun

Middle English, from Old English swearm; akin to Old High German swaram swarm and probably to Latin susurrus hum

Verb (2)

origin unknown

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a

Verb (1)

14th century, in the meaning defined at intransitive sense 1

Verb (2)

14th century, in the meaning defined at intransitive sense

Phrases Containing swarm

• swarm spore

Rhymes for swarm

• corm
• dorm
• form
• forme
• norm
• storm
• warm
• brainstorm
• conform
• deform
• firestorm
• hailstorm

Kids Definition

swarm

1 of 2 noun

ˈswȯ(ə)rm 

1

: a great number of honeybees leaving together from a hive with a queen to start a new colony elsewhere

also : a colony of honeybees settled in a hive

2

: a large number grouped together and usually in motion

swarms of sightseers

a swarm of meteors

swarm

2 of 2 verb

1

: to form and leave a hive in a swarm

2

: to move or gather in a swarm : throng

spectators swarmed into the stadium

3

: to contain or fill with a swarm