Is O'clock One or Two Words?

An apostrophe is used in o'clock because the word is a contraction of the phrase "of the clock." Just like other contractions, the apostrophe takes the place of missing words or letters from a longer word or phrase.

What is the correct way to spell o clock?

Correct spelling for the English word “o'clock” is [əklˈɒk], [əklˈɒk], [ə_k_l_ˈɒ_k] (IPA phonetic alphabet).

What is o'clock in grammar?

adverb [num ADV] You use o'clock after numbers from one to twelve to say what time it is. For example, if you say that it is 9 o'clock, you mean that it is nine hours after midnight or nine hours after noon. The trouble began just after ten o'clock last night.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.