Meanings
nounplan B (countable and uncountable, plural plan Bs)
plural plan Bs
- countableuncountableAn alternative approach adopted when one's original plan does not succeed.
to (not) have a plan B
3 more examples
After failing to find a wife by 40, he had to rely on plan B, a mail-order bride.
She needed something else...A backup plan, a plan "B".
2016, A.K. Brown, Jumpstart (Champagne Universe Series: Book 1), page 3"There was no plan B, other than the Pendolino would have to run in non-tilt mode at 110mph."[…].
2022 September 21, Chris Green tells Nick Brodrick, “It's absolutely my favourite train”, in RAIL, number 966, page 35Synonyms: contingency plan
Synonyms & antonyms
nounAn alternative approach adopted when one's original plan does not succeed.
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Cite this entry
APA
plan B. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/plan%20B
MLA
“plan B.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/plan%20B. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “plan B,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/plan%20B.
Source: plan B on Wiktionary, CC BY-SA 4.0.