Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
determiner is a noun meaning "an argument that is conclusive". It carries 3 recorded senses.
an argument that is conclusive
one of a limited class of noun modifiers that determine the referents of noun phrases
a determining or causal element or factor
“education is an important determinant of one's outlook on life”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for determiner come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.