classifier
UK[ˈklæsɪfaɪə(r)]US[ˈklæsəˌfaɪər]
n
A word or affix that indicates the semantic class to which a noun belongs, especially in languages like Chinese or Japanese.
n
A person or thing that classifies something.
n
A machine or algorithm that sorts things into categories.
Morpheme Breakdown
class
ifi
er
class
category
ifi
make
er
agent
Etymology
The word 'classifier' is a modern English formation built upon the well-established verb 'classify'. The core element 'class' originates from Latin 'classis', which initially referred to a summoning or division of the Roman people, later evolving to mean a rank or category. The suffix '-ify', from Latin '-ificare', transforms the noun into the verb meaning "to make into a class or category". Finally, the agent suffix '-er' is appended, a productive suffix from Old English, to create a noun denoting an entity that performs the act of classifying. Thus, the term logically progresses from the concept of a category, through the action of categorizing, to the agent that executes it.
Analysis
Structure: class (category) + ifi (make) + er (agent)
- class: From Latin 'classis' (a division, fleet, class). In this word, it functions as the base meaning "category" or "group".
- ifi: A reduced form of the verbal suffix '-ify', from Latin '-ificare' (to make). It functions as a verb-forming element meaning "to make" or "to cause to be".
- er: From Old English '-ere', an agent noun suffix. It functions to indicate "a person or thing that performs the action".
Examples
In Mandarin Chinese, the word '个' (gè) is a very common general classifier used with many nouns.
The museum hired a classifier to organize the vast collection of insects.
The email software uses a Bayesian classifier to filter out spam messages.