sickness benefit vs benefit

sickness benefit and benefit both are nouns.

Word	Noun	Adjective	Verb	Adverb
sickness benefit	Yes	No	No	No
benefit	Yes	No	Yes	No

As nouns, benefit is a hypernym of sickness benefit; that is, benefit is a word with a broader meaning than sickness benefit:

sickness benefit: money paid (by the government) to someone who is too ill to work
benefit: financial assistance in time of need

sickness benefit (noun)	benefit (noun)
money paid (by the government) to someone who is too ill to work	something that aids or promotes well-being
	a performance to raise money for a charitable cause
	financial assistance in time of need

sickness benefit (verb)	benefit (verb)
	derive a benefit from
	be beneficial for