звонивший

This is the 11996th most frequent Russian word.

звонивший

"The one who called" or "caller."

In this sentence, 'звонивший' is a past active participle describing the man who made the call.

Звонивший мужчина оставил важное сообщение.

The man who called left an important message.

Here, 'звонившим' is used in its instrumental case form, referring to the person I spoke with.

Я поговорил с звонившим несколько минут назад.

I talked to the person who called a few minutes ago.

In this case, 'звонившая' is a feminine singular form of the participle, matching the gender of the subject.

Звонившая девушка сказала, что придет позже.

The woman who called said she will come later.