berceuse vs song

berceuse and song both are nouns.

Word	Noun	Adjective	Verb	Adverb
berceuse	Yes	No	No	No
song	Yes	No	No	No

As nouns, song is a hypernym of berceuse; that is, song is a word with a broader meaning than berceuse:

Other hypernyms of berceuse include vocal.

berceuse (noun)	song (noun)
a quiet song intended to lull a child to sleep	the act of singing
	a short musical composition with words
	the characteristic sound produced by a bird
	a distinctive or characteristic sound
	a very small sum