almoner vs welfare worker

almoner and welfare worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
almoner	Yes	No	No	No
welfare worker	Yes	No	No	No

As nouns, welfare worker is a hypernym of almoner; that is, welfare worker is a word with a broader meaning than almoner:

almoner: an official in a British hospital who looks after the social and material needs of the patients
welfare worker: someone employed to provide social services (especially to the disadvantaged)

Other hypernyms of almoner include caseworker, social worker.

almoner (noun)	welfare worker (noun)
an official in a British hospital who looks after the social and material needs of the patients	someone employed to provide social services (especially to the disadvantaged)