Word of the Day
Apps by Dictionary
Why turkey has the same name as Turkey
the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Discover our greatest slideshows
8 Tantalizing Terms for Eating
Speak the Season: 7 Essential Words...
11 Wily Whiskers
Let's Get Specific: 6 German words...
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
Difficulty index for
Few English speakers likely know this word
Word Value for
Words With Friends
There is an optical illusion about every person we meet.
Ralph Waldo Emerson
Dear friend, I will have to sink with hundreds of others on a dumbwaiter into hell. I will be a...
What is the use of "good" painting? We want a spell cast upon the optical part of our existence! We...
Nearby words for optical-soundtrack
optical mark reader
optical mark reading
optical sound recording
optical storage technology association
optical time domain reflectometer
optical time domain reflectometry
optimal flexible architecture