say it: FRAK-shuhn
fraction is a noun and verb meaning "a component of a mixture that has been separated by a fractional process". It carries 4 recorded senses.
a component of a mixture that has been separated by a fractional process
a small part or item forming a piece of a whole
the quotient of two rational numbers
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for fraction come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.