half hour

noun

1

: thirty minutes

2

: the middle point of an hour

half-hourly

ˈhaf-ˈau̇(-ə)r-lē 

ˈhäf-

adverb or adjective

Examples of half hour in a Sentence

Trains depart every half hour.

I waited a half hour in line.

Recent Examples on the Web

Following a two and half hour delay, and a pending coming thunderstorm, the two teams mutually agreed to suspend the game. —Charles Baggarly, Fort Worth Star-Telegram, 25 May 2024

When the other teen denied it, Pike allegedly kneed her in the face, kicking off a half hour of taunting, beating and slashing. —Christina Coulter, Fox News, 24 May 2024

Word History

First Known Use

15th century, in the meaning defined at sense 1

Kids Definition

half hour

noun

1

: thirty minutes

2

: the middle point of an hour

half-hourly

ˈhaf-ˈau̇(ə)r-lē

ˈhȧf-

adverb or adjective