This is the 6177th most frequent Russian word.
телеведущая
A female TV host or presenter.
This sentence uses "телеведущая" as the subject, indicating the person who is presenting a program on television.
Телеведущая объявила о начале новой передачи.
The TV presenter announced the beginning of a new program.
Here, "телеведущая" is used in the accusative case as the direct object of the verb "met," indicating someone the speaker met.
Я встретил телевизионную ведущую в кафе вчера.
I met the television presenter at a café yesterday.
In this sentence, "телеведущая" is in the instrumental case within a phrase to describe the profession someone holds.