say it: JAK-uht
jacket is a noun and verb meaning "a short coat". It carries 7 recorded senses.
a short coat
an outer wrapping or casing
“phonograph records were sold in cardboard jackets”
(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
“tomorrow my dentist will fit me for a crown”
dentistry
the tough metal shell casing for certain kinds of ammunition
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 jacket 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.