This is the 721st most frequent Russian word.
номер
The Russian word "номер" means "number" or "room" (e.g., hotel room) in English, depending on context.
Here, 'номер' means 'number' as used to refer to a specific sequence of digits for identifying the phone.
Какой у вас номер телефона?
What is your phone number?
Here, 'номер' means 'room', specifically referring to accommodations in a hotel.
Мы забронировали номер в отеле.
We booked a room in a hotel.
Here, 'номер' means 'act' or 'performance', referring to a specific section or item in a show or event.