Try Our Apps


Blech. These are the grossest words.


variant of ex-1. (by assimilation) before f: efficient. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for ef
Contemporary Examples
Historical Examples
  • And I says, Well, ef God sends me to hell he can't make me holler 'nough nohow.

    The Hoosier Schoolmaster Edward Eggleston
  • I'm go'n to shoot some of them Injins; and ef they don't keep off I'm go'n to shoot the boy.

    Hope and Have Oliver Optic
  • I've seen picturs in Melindy's jography, looks as ef 'twa'n't so woodsy over there as 'tis in these parts, 'specially out West.

  • ef any of them Injins come near us, I'm go'n to show 'em what I kin do.

    Hope and Have Oliver Optic
  • But dey is dem dat says ef I was down on de ground I might fall down a hole.

  • "She's been the makin' o' me, ef I ever do come out anywhere," he continued.

    Hope and Have Oliver Optic
  • You're down on your luck, and a bit crusty; and you wouldn't be that ef the news were true.

    A Girl of the People L. T. Meade
  • What do you want to keep still for, ef you ain't go'n' to steal it?

    Freaks of Fortune Oliver Optic
  • All I say is, ef you're going through the world with such high and mighty fine notions, you'll have a hard time.

    The Girl from Montana Grace Livingston Hill
Related Abbreviations for ef


efficiency (apartment)
emission factor
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for ef-

Few English speakers likely know this word

Word Value for ef

Scrabble Words With Friends

Nearby words for ef