dog collar vs neckband

dog collar and neckband both are nouns.

Word	Noun	Adjective	Verb	Adverb
dog collar	Yes	No	No	No
neckband	Yes	No	No	No

As nouns, neckband is a hypernym of dog collar; that is, neckband is a word with a broader meaning than dog collar:

dog collar: a stiff white collar with no opening in the front; a distinctive symbol of the clergy
neckband: a band that fits around the neck and is usually folded over

Other hypernyms of dog collar include collar.

As nouns, dog collar and neckband are synonyms defined as:

dog collar and neckband: necklace that fits tightly around a woman's neck

Other synonyms of dog collar include choker, collar.

dog collar (noun)	neckband (noun)
a collar for a dog	a band that fits around the neck and is usually folded over
a stiff white collar with no opening in the front; a distinctive symbol of the clergy	necklace that fits tightly around a woman's neck
necklace that fits tightly around a woman's neck	a band around the collar of a garment