English Dictionary

complementizer

noun

(linguistics) A subordinating conjunction that can convert a clause into a complement clause, i.e. one that completes a grammatical construction in the predicate and that describes or is identified with the subject or object.

The complementizer introduces a subordinate clause.

意味（1）

(linguistics) A subordinating conjunction that can convert a clause into a complement clause, i.e. one that completes a grammatical construction in the predicate and that describes or is identified with the subject or object.

That is a complementizer in the sentence Mary believes that it is raining.