propeller

noun

pro·​pel·​ler prə-ˈpe-lər 

variants or less commonly propellor

: one that propels

especially : a device that consists of a central hub with radiating blades placed and twisted so that each forms part of a helical surface and that is used to propel a vehicle (such as a ship or airplane)

Examples of propeller in a Sentence

Recent Examples on the Web

Engines and propellers are designed to consume less fuel. —Condé Nast, Condé Nast Traveler, 25 Feb. 2026

The box-wing concept requires a more complex interconnected shaft system, allowing the engines to transfer power between the main rotor and the lateral propellers. —David Szondy february 24, New Atlas, 24 Feb. 2026

The novel design features a seven-blade propeller made to reduce noise. —Georgina Jedikovska, Interesting Engineering, 23 Feb. 2026

The four propellers are encased in lightweight propeller guards for safer flights when tracking you, which is incredibly useful. —James Abbott, Space.com, 23 Feb. 2026

Word History

Etymology

propel + -er entry 2

First Known Use

1780, in the meaning defined above

Phrases Containing propeller

• propeller-head
• screw propeller

Rhymes for propeller

• bestseller
• bookseller
• flagellar
• impeller
• lamellar
• micellar
• modeller
• ocellar
• patellar
• reseller
• scutellar
• beller

Kids Definition

propeller

noun

pro·​pel·​ler prə-ˈpel-ər 

: a device consisting of a hub fitted with blades that is made to turn rapidly by an engine and is used especially for propelling airplanes and ships