We found 3 dictionaries that define the word o clock:

General (3 matching dictionaries)

1. o clock: Longman Dictionary of Contemporary English
2. o-clock: Wordnik
3. o clock: Wikimedia Commons US English Pronunciations

Phrases: five o clock, more... ▸ Words similar to o clock ▸ Usage examples for o clock ▸ Idioms related to o clock ▸ Wikipedia articles (New!) ▸ Words that often appear near o clock ▸ Rhymes of o clock ▸ Invented words related to o clock