WordNet: categorisation, categorization, classification
a group of people or things arranged by class or category
- hypernym arrangement
- hyponym dichotomy, duality
- hyponym trichotomy
categorisation
- (suomi) luokka (synonyymi)
categorization
- (englanti) categorize (derivationally related)
- (suomi) kategoria (synonyymi)
classification
- (englanti) classify (derivationally related)