What is a carrier called?

What a carrier is called depends on the context and what it is carrying, as the word carrier is a general term with many specific names in different fields. In shipping and logistics, a carrier is called a common carrier, freight carrier, shipping carrier like UPS, FedEx, or USPS, or an air carrier or airline carrier like Delta or United that carries passengers and cargo on airplanes. In mail delivery, a carrier is called a mail carrier or letter carrier. In HVAC, a carrier is called an HVAC manufacturer, specifically Carrier Global Corporation which makes air conditioners, furnaces, and heat pumps and owns Bryant and Payne. In medicine and genetics, a carrier is called an asymptomatic carrier, healthy carrier, genetic carrier, or infectious disease carrier, such as a person who carries a gene for cystic fibrosis or a virus like COVID-19 without symptoms. In biology, an animal that carries disease is called a vector, like mosquitoes that are vectors for malaria. In telecommunications, a carrier is called a wireless carrier, mobile carrier, or telecom carrier like Verizon, AT&T, or T-Mobile. So a carrier is called by different names like common carrier, mail carrier, airline carrier, genetic carrier, disease vector, or HVAC manufacturer depending on industry.