trojka

Noun

 * 1) three digit or figure

Etymology
..

Noun

 * 1) troika

Etymology
.

Noun

 * 1) three (digit or figure)
 * 2) anything numbered three (playing card, tram, bus, player with a jersey number 3 etc.)
 * 3) the school grade '3'
 * 4) trio (group of three)
 * 5)  triplets
 * 6) troika