This is the 17434th most frequent Russian word.
тесным
"Tесным" means "tight" or "close."
тесной is used here to describe a small, limited space in terms of area, emphasizing lack of room or tightness.
Я живу в тесной комнате.
I live in a small room.
тесные in this instance refers to the emotional closeness or strong bond between two individuals.
У нас с братом очень тесные отношения.
My brother and I have a close relationship.
тесные is describing a physical tightness, indicating that the shoes are too narrow or constrictive for comfort.