Meaning & use
one-third
The fraction equal to one part out of three equal parts of a whole, written as 1/3.
See it in a sentence
Roughly one-third of the students chose Spanish as their second language.
The recipe calls for one-third of a cup of olive oil.
A note on using this word
One-third is written with a hyphen when used as a fraction before a noun, as in "one-third of the class," and is equivalent to about 33.3 percent.
Words with a similar meaning
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