The Bulgarian word for cheek is
буза

Translations for cheek and their definitions

страна	©
1. n. side, facet
от една́ страна́ ..., от дру́га страна́ ... - from one side ..., from another side ...
оста́вам/стоя́ на страна́ (от) - to remain/to stay aside (from), to remain impartial (to)
о́пака страна́ - opposite, inverse side/face
на отсре́щната страна́ - on the opposite side
2. n. direction, orientation (including cardinal direction)
зави́вам на дру́га страна́ - to turn in another direction
и́зточна страна́ - east orientation
3. n. country, land, region
ро́дна страна́ - homeland
разви́та страна́ - developed country
бли́зки и дале́чни страни́ - near and far countries
4. n. (figurative) viewpoint, perspective, angle
от страна́ на - from the point of view of
5. n. (figurative) side, aspect, nuance (of character, personality)
скри́та страна́ на не́чий хара́ктер - a hidden side of someone's character
6. n. (colloquial) cheek (any of the two sides of the face)