This is the 2067th most frequent Russian word.
игнат
"Iгнат" is a Russian male given name, derived from the Latin name Ignatius.
Here, 'Игнат' is used as the subject of the sentence, referring to a person's name.
Игнат пишет письмо другу.
Ignat is writing a letter to a friend.
In this sentence, 'Игната' is in the genitive case, which is used to show possession after 'у'.
У Игната есть кошка.
Ignat has a cat.
The name 'Игнат' is in the accusative case here to indicate the direct object of the verb 'saw'.