COLLAR

A 'collar' is something which goes around the neck of a person, animal, or thing (such as a bottle).
Specifically, ''collar'' may mean:

★ Collar (clothing), the part of a garment that fastens around or frames the neck.

★ Collar (animal), a strap for an animal's neck to which a leash or harness may be attached.

★ Collar (BDSM), a device of any material placed around the neck of the submissive partner in BDSM.

★ Collar (jewelry), an ornament for the neck, especially a close-fitting necklace popular in the Edwardian period and sporadically thereafter, or a livery collar worn around the neck and shoulders as a mark of office.

★ Cervical collar is a supporting device used by medicine in cases of trauma or weakness of the neck spine

★ Collar (finance), a combination of an equal number of call and put options at slightly different exercise prices.

★ ''Collars'' is also used metonymically (and usually in a derogatory manner) to refer to members of the clergy.

★ ''Collars'' are a mechanical piece in a gearbox which engages the gears of the driveshaft onto the layshaft of the gearbox.