budgie vs lovebird

budgie and lovebird both are nouns.

Word	Noun	Adjective	Verb	Adverb
budgie	Yes	No	No	No
lovebird	Yes	No	No	No

As nouns, budgie and lovebird are synonyms defined as:

budgie and lovebird: small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors

budgie (noun)	lovebird (noun)
small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors	small African parrot noted for showing affection for their mates
	small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors