What does tanker mean?
A tanker is a large ship built to transport liquid cargo, most commonly crude oil, refined petroleum, chemicals, or another bulk liquid. The word also denotes an aircraft equipped to carry fuel and deliver it to other aircraft while they are in flight. Tankers are important because they move enormous quantities of essential commodities across long distances, often between production centres, refineries, and markets. Although “tanker” can refer generally to a transport vehicle or ship, its established nautical meaning is especially prominent: an oil tanker is typically a large vessel with numerous tanks connected by pipelines and separated by protective bulkheads. In aviation, the same word applies to a specialised refuelling aircraft, such as those used to extend the range of military and long-distance aircraft. The term is formal and neutral, commonly used in shipping, energy, aviation, and military reporting.
A ship designed to carry liquid cargo, especially oil or petroleum products.
"The tanker docked at the oil terminal to unload its cargo."
The maritime sense is the most common. The modifier oil is frequently included when the cargo is petroleum.
An aircraft equipped to carry fuel and transfer it to other aircraft in flight.
"The long-haul aircraft received additional fuel from the tanker."
This is an established aviation and military term and may also be used metaphorically for a vehicle that supplies fuel or resources.
Use the plural when referring to multiple such ships or aircraft.
"Several tankers were delayed by rough seas."
A tanker can carry enough oil to supply a country for weeks, making these ordinary-looking ships enormous strategic assets.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does tanker come from?
The noun tanker was formed in English from tank and the productive suffix -er, meaning a person or thing associated with the stated activity. Its development follows the older use of tank for a container of liquid and later for vessels designed to carry such containers. The word now has separate established applications in maritime transport and aviation, reflecting the many different vehicles capable of transporting or transferring liquid fuel.
How tanker is actually used
In maritime usage, the word most often refers specifically to a ship carrying liquids. The aircraft sense is standard in aviation and military contexts; outside those contexts, it may sound informal or metaphorical.
Easily confused with tanker
A tank is the container or vehicle that holds a liquid, while a tanker is a ship or aircraft that transports or supplies liquid fuel.