shuttlecock vs birdie

shuttlecock and birdie both are nouns.

Word	Noun	Adjective	Verb	Adverb
shuttlecock	Yes	No	Yes	No
birdie	Yes	No	Yes	No

As nouns, shuttlecock and birdie are synonyms defined as:

shuttlecock and birdie: badminton equipment consisting of a ball of cork or rubber with a crown of feathers

Other synonyms of shuttlecock include bird, shuttle.

shuttlecock (noun)	birdie (noun)
badminton equipment consisting of a ball of cork or rubber with a crown of feathers	badminton equipment consisting of a ball of cork or rubber with a crown of feathers
	(golf) a score of one stroke under par on a hole

shuttlecock (verb)	birdie (verb)
send or toss to and fro, like a shuttlecock	shoot in one stroke under par