winker vs blinder

winker and blinder both are nouns.

Word	Noun	Adjective	Verb	Adverb
winker	Yes	No	No	No
blinder	Yes	No	No	No

As nouns, winker and blinder are synonyms defined as:

winker and blinder: blind consisting of a leather eyepatch sewn to the side of the halter that prevents a horse from seeing something on either side

Other synonyms of winker include blinker.

winker (noun)	blinder (noun)
blind consisting of a leather eyepatch sewn to the side of the halter that prevents a horse from seeing something on either side	blind consisting of a leather eyepatch sewn to the side of the halter that prevents a horse from seeing something on either side
a person who winks