Determiner

/dɪtˈɜːmɪnə/

/dɪtˈɜːmɪnɚ/

Determiner

a determining or causal element or factor

(grammar) a word coming before a noun or noun phrase to specify its denotation

an argument that is conclusive

synonyms : clincher

Examples

1. Not all of our noun phrases have a determiner in them.

2. The is a determiner.

3. Noun phrase goes to determiner noun, optional prepositional phrase.

4. So here 'another' is the determiner to the singular countable noun, 'room'.