alms-giving vs almsgiving

alms-giving and almsgiving both are nouns.

Word	Noun	Adjective	Verb	Adverb
alms-giving	Yes	No	No	No
almsgiving	Yes	No	No	No

As nouns, alms-giving and almsgiving are synonyms defined as:

alms-giving and almsgiving: making voluntary contributions to aid the poor

alms-giving (noun)	almsgiving (noun)
making voluntary contributions to aid the poor	making voluntary contributions to aid the poor