noun
oasis
Refers to a fertile spot in a desert, or metaphorically to a place of refuge or relief.
砂漠の中に小さなオアシスがあった。
There was a small oasis in the middle of the desert.
この公園は都会のオアシスだ。
This park is an oasis in the city.
Borrowed from English 'oasis', ultimately from Ancient Greek ὄασις (óasis).