athird

noun
UK /əˈθɜːd/
US /əˈθɝːd/

One of three equal pieces of something.

She ate a third of the pizza and saved the rest.


OTHER MEANINGS

2. The person or thing that comes after the second in a list or order.

He finished a third in the race.

3. One of three equal parts of a whole number, written as 1/3.

A third of twelve is four.

4. A unit of measurement equal to one of three equal parts.

Add a third of a cup of milk to the mix.