waistband vs girdle

waistband and girdle both are nouns.

Word	Noun	Adjective	Verb	Adverb
waistband	Yes	No	No	No
girdle	Yes	No	Yes	No

As nouns, waistband and girdle are synonyms defined as:

waistband and girdle: a band of material around the waist that strengthens a skirt or trousers

Other synonyms of waistband include cincture, sash, waistcloth.

waistband (noun)	girdle (noun)
a band of material around the waist that strengthens a skirt or trousers	a woman's close-fitting foundation garment
	a band of material around the waist that strengthens a skirt or trousers
	an encircling or ringlike structure

waistband (verb)	girdle (verb)
	put a girdle on or around
	cut a girdle around so as to kill by interrupting the circulation of water and nutrients