Dictionary.com

groundspeed

or ground speed

[ ground-speed ]
/ ˈgraʊndˌspid /
Save This Word!

noun
the speed of an aircraft with reference to the ground.
QUIZ
SPRINT TO THE FINISH WITH THIS OLYMPICS QUIZ!
Compete in our Olympics quiz to see if you can take home the gold medal in Olympics knowledge.
Question 1 of 10
Where was the Olympics first held?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of groundspeed

First recorded in 1915–20; ground1 + speed
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for groundspeed

groundspeed
/ (ˈɡraʊndˌspiːd) /

noun
the speed of an aircraft relative to the groundCompare airspeed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK