definition of
cap

[1] #1 cap n. a tight-fitting headdress. wn

[2] #2 cap v. [crest] lie at the top of; "Snow capped the mountains". wn

[3] #3 cap n. a top (as for a bottle). wn

[4] #4 cap n. [detonator, detonating device] a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive. wn

[5] #5 cap n. something serving as a cover or protection. wn