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collar

1 collar /ˈkɑːlɚ/ noun
plural collars
1 collar
/ˈkɑːlɚ/
noun
plural collars
Britannica Dictionary definition of COLLAR
[count]
: a part of a piece of clothing that fits around a person's neck and is usually folded down
see color picture on this page; see also blue-collar, pink-collar, white-collar
: a band of leather, plastic, etc., worn around an animal's neck see also flea collar
technical : a ring or band used to hold something (such as a pipe or a part of a machine) in place

hot under the collar

see 1hot
2 collar /ˈkɑːlɚ/ verb
collars; collared; collaring
2 collar
/ˈkɑːlɚ/
verb
collars; collared; collaring
Britannica Dictionary definition of COLLAR
[+ object] informal
: to catch or arrest (someone)
: to stop (someone) in order to talk : to force (someone) to have a conversation