by the (unit)

by the (unit)

For each unit, as of items sold in this manner. How much does this meat cost by the pound?
See also: by
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

by the unit

Fig. each; per. (Used to designate the unit of measure, but not the rate of a measure.) Lettuce is sold by the head. Gas is sold by the gallon.
See also: by, unit
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

by the

bye/by
By the way; incidentally.
See also: by
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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