English · Proverb Attested

one swallow does not a summer make

In real, traceable use. Part of the curated seed collection; community review is coming.

Also seen as: one swallow doesn't make a summer · one swallow does not make a spring · one swallow doesn't make a spring · one swallow does not a spring make · one swallow doesn't a spring make · one swallow doesn't a summer make

Both English Tiếng Việt

Meaning · English

One instance of an event (such as the arrival of a single bird) does not necessarily indicate a trend.

Nghĩa · Tiếng Việt

Một sự kiện không thể hiện xu hướng

Machine-translated — suggest a fix

Where it’s used: Used American English

Examples

[T]hough one swallow does not make a summer, one engagement is apt to make several, and her boys were, most of them, at the inflammable age when a spark ignites the flame[.]

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “one swallow does not a summer make” mean?

One instance of an event (such as the arrival of a single bird) does not necessarily indicate a trend.

Is “one swallow does not a summer make” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.