Learn Polish: Nie znoszę hałasu. - I can't stand noise.

Because of the word nie. The verb znosić normally takes the accusative case for its direct object. However, in Polish, whenever a verb that takes the accusative is negated, its direct object automatically flips to the genitive case. This is a very common and strict rule known as the genitive of negation.

Does the verb znosić have other literal meanings?

Yes. It is formed by combining the prefix z- (down, off) with the motion verb nosić (to carry, to wear). Literally, it means to carry something down, like moving boxes to a basement. It is also the verb used for a bird laying eggs! However, in everyday conversation, it is used figuratively just like the English phrase to bear or to stand.

What is the difference between nie znoszę and nienawidzę (I hate)?

They are very similar and often interchangeable in casual speech, but the exact nuance is slightly different. Nienawidzę is a strong, active emotion meaning I hate. Nie znoszę is about your threshold for tolerance, meaning I cannot endure or I can't put up with. Conveniently for learners, both verbs require the following noun to be in the genitive case.

Why do we use the imperfective verb znosić here instead of its perfective form znieść?