The Vietnamese word "nhiên liệu" is a noun that means "fuel" in English. It refers to any material that can be burned or used to produce energy. This can include substances like gasoline, coal, wood, and even food in some contexts.
While "nhiên liệu" primarily means "fuel," in broader contexts, it can also refer to anything that provides energy or motivation for an action. For instance, in a metaphorical sense, you might hear it used to describe something that fuels a passion or interest.