Here are some Polish words that could be used in this context:
* Namiot - This is the most common word for a tent.
* Szałas - This word refers to a simple, rustic shelter made of branches and leaves.
* Chatka - This word can be used for a small, temporary hut or shelter.
* Przytułek - This word means "shelter" and could be used in the context of temporary accommodation.
The best translation will depend on the specific context in which you are using the word "basha".
For example, if you are talking about a military basha, the best translation would be plandeka or namiot maskujący.