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Definition of four o'clock

four o'clock

Plural:four o'clocks
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• noun

1

The fourth hour of the day or night; exactly four hours after midnight or noon.

Example

"The committee is scheduled to meet in the conference room at four o'clock."

2

A widely cultivated ornamental plant native to tropical regions of the Americas, characterized by fragrant, trumpet-shaped flowers that typically open in the late afternoon.

Example

"She planted vibrant pink and yellow four o'clocks along the walkway to enjoy their evening fragrance."

Synonyms
View all synonyms for four o'clock

• Nearby Words

fountain
fountainhead
four
four o'clock
fourfold
fourplex
fourscore

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Four o'clock. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/four-o'clock
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