1col·lar 
/ˈkɑ:lɚ/ noun
plural col·lars /ˈkɑ:lɚ/ noun [count] 1 : a part of a piece of clothing that fits around a person's neck and is usually folded down
▪ He wore a shirt with a tight-fitting collar. ▪ She grabbed me by the collar. ▪ He loosened his collar. [=unbuttoned the top button of his shirt] — see color picture; see also blue-collar, pink-collar, white-collar 2 : a band of leather, plastic, etc., worn around an animal's neck
▪ I bought a new collar for the dog. — see also flea collar 3 technical : a ring or band used to hold something (such as a pipe or a part of a machine) in place
▪ He wore a shirt with a tight-fitting collar. ▪ She grabbed me by the collar. ▪ He loosened his collar. [=unbuttoned the top button of his shirt] — see color picture; see also blue-collar, pink-collar, white-collar
▪ I bought a new collar for the dog. — see also flea collar
hot under the collar — see 1hot
