теории

theory

tʲ ɪ o rʲ ɪ ɪ → теория

теори theory + и plural or singular genitive/dative/prepositional

noun · plural feminine, nominative / singular feminine, genitive / singular feminine, dative / plural feminine, accusative / singular feminine, locative Rare #37,216

theory Can refer to an explanatory idea or to an organized body of principles, as in music theory.

RU: У этой теории есть сторонники.

EN: This theory has supporters.

Declension of теория

	Singular	Plural
Nominative	теория	теории
Accusative	теорию	теории
Genitive	теории	—
Dative	теории	—
Locative	теории	—

Я не сторонник этой теории.

I'm not a proponent of this theory.