What is a determiner?

Definition
	A determiner is a word or affix that belongs to a class of noun modifiers that expresses the reference, including quantity, of a noun.

Example (English)
	all these houses

Kinds
	Here are some kinds of determiners:
	What is an article? What is a demonstrative? What is a quantifier?

Generic
	A determiner is a kind of
	What is a word?