The Vietnamese word "giếng khơi" refers to a type of deep well. It is a source of water that is dug deep into the ground to reach underground water, typically used for drinking, irrigation, or other purposes.
In more advanced contexts, "giếng khơi" can also refer to traditional methods of water collection and management in agriculture or rural living.
"Giếng khơi" is an important term in Vietnamese, especially in contexts related to water resources and rural life.