Cite
 

Meaning of business envelope

busi'ness en"velope

Pronunciation: [key]
  1. a postal envelope for standard-size business letters 8 × 11 in. (20 × 28 cm), measuring about 4 × 9 in. (11 × 23 cm).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.