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plan B

or Plan B

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noun
a strategy or plan to be implemented if the original one proves impracticable or unsuccessful.
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Origin of plan B

First recorded in 1975–80; from the assumption that the original plan is “plan A”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use plan B in a sentence

Medical definitions for plan B

Plan B
[ plăn ]

A trademark for a drug that contains levonorgestrel and is a morning-after pill.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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