Questions & Answers about После уборки в комнате сухо и уютно.
Because после always takes the genitive case.
- уборка is the basic (nominative) form: a cleaning, cleaning (as a noun).
- After после, we must use the genitive: уборки.
Examples:
- после урока – after the lesson
- после работы – after work
- после дождя – after the rain
- после уборки – after the cleaning
So уборки is just “уборка” in the genitive singular, required by the preposition после.
Уборка is a noun meaning cleaning, tidying up (the process or event).
It usually refers to:
- cleaning a room, apartment, house, etc.
- putting things in order, removing dust, washing floors, etc.
Compare:
- уборка в комнате – cleaning/tidying the room
- уборка квартиры – cleaning the apartment
It is not a verb (that would be убирать / убрать). In this sentence, после уборки means after the cleaning (has been done).