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Definition of rainfall

rainfall

/ˈreɪn.fɔːl/
rain · fall
Plural:rainfalls
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rainfall Lexical Profile

rainfall Game Scores & Validity

• noun

1

The quantity of rain falling within a given area in a given time.

Example

"The region receives an average annual rainfall of forty inches."

2

A fall or shower of rain.

Example

"A heavy rainfall flooded the low-lying streets in less than an hour."

Synonyms
View all synonyms for rainfall
Antonyms
View all antonyms for rainfall

• Rhymes for rainfall

• Nearby Words

raincheck
raincoat
raindrop
rainfall
rainforest
raininess
rainless

Word Origin & Etymology

A mid-19th-century English compound formed from "rain" (from Old English regn) and "fall" (from Old English feallan), originally introduced in meteorological reports to measure total precipitation.

Cite this Entry

Wordmom. (2026). Definition of Rainfall. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/rainfall
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