one-third
nounUK /ˌwʌnˈθɜːd/
US /ˌwʌnˈθɝːd/
One of three equal parts of something.
She ate one-third of the pizza and saved the rest for later.
OTHER MEANINGS
2. The fraction equal to 1 divided by 3, written as 1/3.
One-third written as a decimal is about 0.333.
3. A position or share amounting to one of three equal portions.
The company gave him one-third of the profits.
4. Used to describe something that is approximately 33 percent in size or amount.
One-third of the students chose to walk to school.