.

Keeping this in consideration, what does o'clock mean?

O" 'clock

Secondly, where does the o in o'clock come from? 1 Answer. This website explains it quite nicely:o'clock (adj.) c.1720, abbreviation of of the clock (1640s),from Middle English of the clokke (late 14c.). The usage ofo' as a shortened way to say of is not uncommon (this iscalled an apocopic form, when the last syllable or consonant isleft unpronounced).

Similarly one may ask, what does dead as a mackerel mean?

Adjective. dead as a mackerel (not comparable)(simile) Utterly dead.

How do you use o'clock in a sentence?

o'clock. You use o'clock after numbersfrom one to twelve to say what time it is. For example, if you saythat it is 9 o'clock, you mean that it is nine hours aftermidnight or nine hours after noon. The trouble began just after teno'clock last night.