say it: KAH-muh
comma is a noun meaning "a punctuation mark (,) used to indicate the separation of elements within the grammatical structure of a sentence". It carries 2 recorded senses.
a punctuation mark (,) used to indicate the separation of elements within the grammatical structure of a sentence
anglewing butterfly with a comma-shaped mark on the underside of each hind wing
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 comma 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.