1. Child: This is the most common meaning of "luk". It can refer to a son or a daughter.
* luk chaai (ลูกชาย) - son
* luk saa (ลูกสาว) - daughter
2. Ball: This refers to a round object used in games or sports.
* luk bue (ลูกเบี้ยว) - marbles
* luk thung (ลูกหนัง) - soccer ball
3. Seed: This meaning refers to the small part of a plant that grows into a new plant.
* luk ma muang (ลูกมะม่วง) - mango seed
* luk khai (ลูกไข่) - egg (literally "egg seed")
4. Unit of measurement: In some contexts, "luk" can mean a unit of measurement, similar to a "piece" or "item".
* luk sai (ลูกไส้) - sausage (literally "sausage piece")
* luk kae (ลูกแกะ) - lamb (literally "lamb piece")
5. Fruit: "Luk" can sometimes be used to refer to a specific type of fruit.
* luk thap tim (ลูกทับทิม) - pomegranate (literally "pomegranate fruit")
6. A part of something: In some contexts, "luk" can mean a part or section of something larger.
* luk khon (ลูกคน) - a member of a family (literally "part of a family")
The specific meaning of "luk" will depend on the context and the other words it is used with.