What Does "Back-of-the-envelope" Mean?

"Back-of-the-envelope" is an English idiom. It means "a rough calculation or initial estimate, often done quickly without detailed analysis."

Examples in Sentences

Here are three examples of the idiom "back-of-the-envelope" used in a sentence:

A Quick Test

You now know what "back-of-the-envelope" means, but are you good at English idioms? Let's see!
gold cup

gold cup

gold cup

Scoring System

Guru (+)
Hero (+)
Captain (+)
Sergeant (+)
Recruit (+)
Help Us To Improve English Grammar Lessons
Please tell us using this form.

See Also

meaning of the idiom "back of one's hand" meaning of the idiom "back-patty"