Word of the Day
Apps by Dictionary
Is it ensure, insure, or assure?
a technique used in radio interferometry in which the signal from one of the two antennae is periodically reversed in phase before being multiplied by the signal from the other antenna
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
Cite This Source
Discover our greatest slideshows
A lot vs. Alot: 9 Grammatical...
10 Words Coined in the Sci-Fi...
9 Words About Beginnings
8 Words for Celebration
Browse more topics on our blog
What Is the Difference Between Discreet and Discrete?
Learn the correct uses of these two commonly confused homophones.
What Character Was Removed from the Alphabet?
What mistaken pronunciation gave this character its name?
This small mark has two primary uses: to signify possession or omitted letters.
How Do I Get a Word into the Dictionary?
People invent new words all the time, but which ones actually make it?
Word of the Day
Word Value for
Words With Friends
At retirement, switching from "I must" to "I want" leaves me puzzled and uneasy.
Mr. Christian, it is about time for many people to begin to come to the White House to discuss...
Adolescence has been recognised as a stage of human development since medieval times—long, long...
Nearby words for phase-switching
phase alternating line
phase contrast microscope
phase i block
phase ii block
phase of the moon
phase shift keying
phases of matter