Synonyms

propeller

[pruh-pel-er]

pro·pel·ler

[pruh-pel-er]
noun
1.
a device having a revolving hub with radiating blades, for propelling an airplane, ship, etc.
2.
a person or thing that propels.
3.
the bladed rotor of a pump that drives the fluid axially.
4.
a wind-driven, usually three-bladed, device that provides mechanical energy, as for driving an electric alternator in wind plants.

Origin:
1770–80; propel + -er1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Propeller is a GRE word you need to know.
So is propaganda. Does it mean:
information, ideas, or rumors deliberately spread widely to help or harm
to drive, or cause to move, forward or onward
Collins
World English Dictionary
propeller (prəˈpɛlə)
 
n
1.  a device having blades radiating from a central hub that is rotated to produce thrust to propel a ship, aircraft, etc
2.  a person or thing that propels

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
propeller   (prə-pěl'ər)  Pronunciation Key 
A device consisting of a set of two or more twisted, airfoil-shaped blades mounted around a shaft and spun to provide propulsion of a vehicle through water or air, or to cause fluid flow, as in a pump. The lift generated by the spinning blades provides the force that propels the vehicle or the fluid—the lift does not have to result in an actual upward force; its direction is simply parallel to the rotating shaft.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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