animal collar
Refers to a collar worn by pets or other animals, typically for attaching a leash or identification.
I bought a new collar for my dog.
Used for a close-fitting necklace or choker worn by people; can also refer to a decorative collar-like accessory.
She wore a pearl choker to the party.
I put a collar on the dog and took it for a walk.
When I got home, I took off the cat's collar for it.
She's wearing a simple choker today.
首輪 goes around the neck, whereas 指輪 is a ring worn on a finger; both use '輪' for something circular.
首輪 is typically counted with 個, the general counter for small discrete objects like collars.
Rarely used kanji form; 環 means 'ring' or 'loop'.
Rarely used kanji form; 頚 is a variant of 頸.