The word "Gobi" can refer to either the Gobi Desert or, in the context of food, it often refers to cauliflower or cabbage.
The meaning depends on the context.
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Gobi Desert: This vast desert in Asia is generally known as the Gobi Desert in English. There isn't a common alternative English name for it.
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Gobi (as food): The term "gobi" in some cuisines (particularly Indian cuisine) refers to either cauliflower or cabbage. The specific vegetable meant depends on the dish being discussed. For example, "Gobi Manchurian" is made with cauliflower.
Therefore, to be precise, one needs to know the context.