# Concept A unit of thought in a knowledge organization system. > [!info]- Canonical definition > This term is maintained in the [[vocab|PKM Vocabulary]] SKOS source, not here. > `pkmv:Concept` · [term page](https://w3id.org/pkm/vocab/Concept) · [Turtle](https://w3id.org/pkm/vocab/terms/Concept.ttl) ## Scope An abstract idea independent of its label. It's how we organize ideas for browsing and retrieval. a PKM Concept is based on the SKOS standard skos:Concept. ## Broader - [[Knowledge (Term)|Knowledge]] — partitive (ISO 25964) ## Related - [[Term (Term)|Term]] ## Collections - [[Concept Collection (Collection)|Concept Collection]] - [[Knowledge Collection (Collection)|Knowledge Collection]] - [[Note Types (Collection)|Note Types]] ## External - see also <http://www.w3.org/2004/02/skos/core#Concept> --- #vocab/term · created 2026-08-24 · modified 2026-08-31