almoner vs caseworker

almoner and caseworker both are nouns.

Word	Noun	Adjective	Verb	Adverb
almoner	Yes	No	No	No
caseworker	Yes	No	No	No

As nouns, caseworker is a hypernym of almoner; that is, caseworker 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
caseworker: someone employed to provide social services (especially to the disadvantaged)

Other hypernyms of almoner include social worker, welfare worker.

almoner (noun)	caseworker (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)