- noun: concept; plural noun: concepts1. an abstract idea.
“structuralism is a difficult concept”
synonyms: idea, notion, conception, abstraction, conceptualization;
2. a plan or intention.
“the centre has kept firmly to its original concept”
3. an idea or invention to help sell or publicize a commodity.
“a new concept in corporate hospitality”
an idea or mental image which corresponds to some distinct entity or class of entities, or to its essential features, or determines the application of a term (especially a predicate), and thus plays a part in the use of reason or language.