The Vietnamese word "láng" is an adjective that means "smooth" or "glossy." It is often used to describe surfaces that are even and shiny, without any roughness.
In more advanced contexts, "láng" can be used metaphorically to describe things that appear polished or refined, such as ideas or performances.
While "láng" primarily means smooth or glossy, it can also be used in different contexts. For instance, it can refer to a person who is very slick in their mannerisms or behavior, implying a level of charm or deceitfulness. However, this usage is less common.