social proof

noun

A psychological and social phenomenon wherein people copy the actions of others if unsure how to behave.

Meanings

nounsocial proof (uncountable)
  1. uncountableA psychological and social phenomenon wherein people copy the actions of others if unsure how to behave.

Origin

Coined by Robert Cialdini in his 1984 book Influence.

Full word history & related roots →
Cite this entry
APA

social proof. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/social%20proof

MLA

“social proof.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/social%20proof. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “social proof,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/social%20proof.

Source: social proof on Wiktionary, CC BY-SA 4.0.