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Definition of stop sign
stop sign
Plural:stop signs
• noun
1
A standardized traffic control sign, typically a red octagon with white lettering, that legally requires drivers to bring their vehicles to a complete halt before proceeding through an intersection.
Example
"She tapped the brakes and brought her car to a halt just before the line at the stop sign."
2
Any figurative signal, warning, or indicator that suggests one should cease an action or proceed no further.
Example
"The sudden drop in quarterly revenue served as a massive stop sign for the company's aggressive expansion plans."
Synonyms
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Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Stop sign. In Wordmom Dictionary. Retrieved Oct 17, 2026, from https://wordmom.com/dictionary/stop%20sign