Carrier (noun)

1. A person or company that carries goods, people, or information from one place to another.
2. A person or animal that carries or transmits a disease.
3. A person who has a particular genetic condition but does not show any symptoms of it.
4. A device or machine for carrying or transporting something.
5. A piece of equipment or material that is used to support or carry something else.

Origin:

Middle english: from old northern french cariere, from medieval latin carraria (via), a military road for wheeled vehicles.

Examples:

1. He works for a delivery carrier.
2. She is a carrier of the virus but does not show any symptoms.
3. The carrier of the genetic condition passed it on to her children.
4. The carrier is used to transport goods from one place to another.
5. The carrier helps to support the weight of the books.