knickerbockers vs knickers

knickerbockers and knickers both are nouns.

Word	Noun	Adjective	Verb	Adverb
knickerbockers	Yes	No	No	No
knickers	Yes	No	No	No

As nouns, knickerbockers and knickers are synonyms defined as:

knickerbockers and knickers: (used in the plural) trousers ending above the knee

Other synonyms of knickerbockers include breeches, knee breeches, knee pants.

knickerbockers (noun)	knickers (noun)
(used in the plural) trousers ending above the knee	(used in the plural) underpants worn by women
	(used in the plural) trousers ending above the knee