Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: a key for securing a member to a machine shaft that fits into a keyway in the secured member and is concave to grip the shaft by friction — compare flat key, sunk key
You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
Share saddle key
Resources for saddle key
Comments on saddle key
What made you want to look up saddle key? Please tell us where you read or heard it (including the quote, if possible).
a state of commotion or excitement
Get Word of the Day daily email!
Words from Greek and Roman Mythology Quiz
Test your visual vocabulary with our 10-question challenge!
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Just add an 'E.'
And if so, what about 'never'?
Words from the week of 10/19/2018
The same, but different
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
A mythological/etymological mashup!
Words to improve your Scrabble game
A game of winding words.