a number of

a number of idiom
A collection of persons or things; several. For example, A number of tours are available, or We've visited a number of times. This idiom often is modified by an adjective giving some idea of quantity, as in Only a small number are going. [1300s] Also see any number of.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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