двойка

двойка • (dvójka) f

1. two (the name of the numeral)
2. anything numbered two (playing card, tram, bus, player with a jersey number 2 etc.)
3. the school grade '2' (equivalent to 'F')
4. pair, couple

дво́е (dvóje) +‎ -ка (-ka)

• IPA^(key): [ˈdvojkə]

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дво́йка • (dvójka) f inan (genitive дво́йки, nominative plural дво́йки, genitive plural дво́ек)

1. two
2. (mark) two (out of five), poor; D mark, D grade

   Ста́влю тебе́ за э́то дво́йку.

   Stávlju tebé za éto dvójku.

   I grade your work as very poor.

   Он получи́л дво́йку по исто́рии.

   On polučíl dvójku po istórii.

   He got a poor grade for history; he didn't pass the history exam.

   на дво́йку ― na dvójku ― awfully, wretchedly, couldn't be worse

3. (card games) two, deuce

   козы́рная дво́йка ― kozýrnaja dvójka ― two of trumps

   дво́йка черве́й ― dvójka červéj ― the two of hearts

4. No 2 (bus, tram, etc.)
5. pair-oar boat, pair, double sculls
6. two-piece suit