cap meaning and definition

CAP noun

Definition of cap (noun)

1. a tight-fitting headdress
2. a top (as for a bottle)
3. a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive
   • synonyms: detonating device, detonator
4. something serving as a cover or protection
5. a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom
   • synonyms: pileus
6. a protective covering that is part of a plant
   • synonyms: hood
7. an upper limit on what is allowed
   • "he put a ceiling on the number of women who worked for him"; "there was a roof on salaries"; "they established a cap for prices"
   • synonyms: ceiling, roof
8. (dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
   • "tomorrow my dentist will fit me for a crown"
   • synonyms: crown, crownwork, jacket, jacket crown
9. the upper part of a column that supports the entablature
   • synonyms: capital, chapiter

CAP verb

Definition of cap (verb)

1. lie at the top of
   • "Snow capped the mountains"
   • synonyms: crest
2. restrict the number or amount of
   • "We had to cap the number of people we can accept into our club"