Meaning & use

hour

noun·Everyday

Last updated

UK/ˈaʊə(r)/
US/ˈaʊər/

Meanings

  1. nouncountable

    A period of time equal to sixty minutes, one of the twenty-four parts of a day.

    Grammar: Countable: 'an hour', 'two hours'. Use 'an' because the 'h' is silent.

    Patterns

    • an hour
    • for an hour
    • in an hour

    The meeting lasted for two hours.

    I'll be back in an hour.

    She waited for half an hour.

  2. nouncountable

    A particular point in time, especially on a clock.

    Grammar: Often used in the plural: 'at all hours'.

    Patterns

    • at an early hour
    • at all hours

    He called me at a very late hour.

    The store stays open at all hours.

  3. nouncountable

    A fixed period of time for work, study, or an activity.

    Grammar: Often plural: 'office hours', 'working hours'.

    Patterns

    • working hours
    • office hours
    • visiting hours

    The library's opening hours are 9 to 5.

    She works long hours.

Word forms

pluralhours

Common combinations

half an hour
The journey takes half an hour.
rush hour
Avoid driving during rush hour.
hour by hour
The situation changed hour by hour.
at the eleventh hour
They reached an agreement at the eleventh hour.

Synonyms and how they differ

period
General word for any length of time; 'hour' is specific to sixty minutes.
time
Broader; an hour is a unit of time.

Word family

hourly adjective
Happening every hour.
hourly adverb
Every hour.
hourglass noun
A device for measuring time using sand.

Commonly confused: hour or our? hour or are?

hour vs our

Pronounced the same in some accents, but 'our' means belonging to us.

hour vs are

A verb; not related to time.

Practice

I waited for ______ hour.

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