live wire vs busy bee

live wire and busy bee both are nouns.

Word	Noun	Adjective	Verb	Adverb
live wire	Yes	No	No	No
busy bee	Yes	No	No	No

As nouns, live wire and busy bee are synonyms defined as:

Other synonyms of live wire include eager beaver, sharpie, sharpy.

live wire (noun)	busy bee (noun)
an alert and energetic person	an alert and energetic person