This is the 7839th most frequent Russian word.
каир
The Russian word "каир" refers to "coir," a natural fiber from coconut husks.
The word "Каир" here is used as a proper noun referring to the city of Cairo.
Каир — столица Египта.
Cairo is the capital of Egypt.
Here, "Каир" is used as the name of the destination city for the trip.
Давайте обсудим поездку в Каир.
Let's discuss the trip to Cairo.
In this sentence, "Каир" is used in its genitive case form for the preposition "из," indicating origin.