Definition of four-o'clock in English:

four-o'clock

Syllabification: four-o'clock

Entry from US English dictionary

noun

A tropical American herbaceous plant with fragrant trumpet-shaped flowers that open late in the afternoon. Also called marvel of Peru.
  • Mirabilis jalapa, family Nyctaginaceae

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Word of the day erroneous
Pronunciation: ɪˈrəʊnɪəs
adjective
wrong; incorrect