"needy" in the noun sense
needy people collectively
"they try to help the needy"
"needy" in the adjective sense
1. destitute, impoverished, indigent, necessitous, needy, poverty-stricken
poor enough to need help from others
demanding or needing attention, affection, or reassurance to an excessive degree
Source: WordNet® (An amazing lexical database of English)
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