1. A practice or habit that is common or traditional in a particular society or group:
* Example: It is a custom in many cultures to give gifts on birthdays.
2. Something that is made or designed specifically for a particular person or purpose:
* Example: She ordered a custom-made dress for her wedding.
3. The practice of making things to order:
* Example: The company specializes in custom furniture.
4. A customer or client:
* Example: We value our loyal customers.
5. A duty or tax levied on imported or exported goods:
* Example: The country has high customs duties on imported cars.
To understand the meaning of "custom" in a specific sentence, you need to consider the context.