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A large number of insects or other small organisms, especially when in motion.
(noun)
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A group of bees with a queen bee in migration to establish a new colony. See Synonyms at flock1.
(noun)
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An aggregation of persons or animals, especially when in turmoil or moving in mass: A swarm of friends congratulated him.
(noun)
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A number of similar geologic phenomena or features occurring closely within a given period or place: a swarm of earthquakes.
(noun)
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To move or emerge in a swarm.
(verb-intransitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.