This is the 4008th most frequent Russian word.
красный
Red.
Adjective describing the color of an object (flag).
Красный флаг развевался на ветру.
The red flag was waving in the wind.
Adjective describing a state or condition (face turning red).
Его лицо стало красным от стыда.
His face turned red from embarrassment.
Proper noun component naming a specific place (Red Square).