[{"Bold_text": "adjective", "List Items": ["essential, indispensable, or requisite:The rotor is a necessary part of the motor.Synonyms: needed Antonyms: dispensable", "happening or existing by necessity:The snow has forced a necessary change in our plans.", "acting or proceeding from compulsion or necessity; not free; involuntary:a necessary agent.", "Logic.(of a proposition) such that a denial of it involves a self-contradiction.(of an inference or argument) such that its conclusion cannot be false if its supporting premises are true.(of a condition) such that it must exist if a given event is to occur or a given thing is to exist. Compare sufficient ( def 2 ) sufficient ( def 2 ).", "(of a proposition) such that a denial of it involves a self-contradiction.", "(of an inference or argument) such that its conclusion cannot be false if its supporting premises are true.", "(of a condition) such that it must exist if a given event is to occur or a given thing is to exist. Compare sufficient ( def 2 ) sufficient ( def 2 )."]}, {"Bold_text": "noun", "List Items": ["something necessary or required for a particular purpose; necessity .Synonyms: essential , requisite , requirement", "necessaries,Law.food, clothing, etc., required by a dependent person and varying with their social or economic position or that of the person upon whom they are dependent.", "Chiefly New England.a privy or toilet."]}]