Synonyms for Enough (same or very similar meaning)
WordNet sense 1 (an adequate quantity; a quantity that is large enough to achieve a purpose):
sufficiency
WordNet sense 2 (enough to meet a purpose):
adequate, decent
WordNet sense 3 (of a quantity that can fulfill a need or requirement but without being abundant):
sufficient
WordNet sense 4 (as much as necessary):
plenty
From the ODE community, based on WordNet
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