cash in hand vs pecuniary resource

cash in hand and pecuniary resource both are nouns.

Word	Noun	Adjective	Verb	Adverb
cash in hand	Yes	No	No	No
pecuniary resource	Yes	No	No	No

As nouns, cash in hand and pecuniary resource are synonyms defined as:

Other synonyms of cash in hand include finances, funds, monetary resource.

cash in hand (noun)	pecuniary resource (noun)
assets in the form of money	assets in the form of money