envelope

/ˈɛnvəlˌoʊp/ · 3 syllables

Meaning

noun

1. a flat (usually rectangular) container for a letter, thin package, etc.
2. any wrapper or covering
3. a curve that is tangent to each of a family of curves
4. a natural covering (as by a fluid)
   “the spacecraft detected an envelope of gas around the comet”
5. the maximum operating capability of a system (especially an aircraft)
   “test pilots try to push the envelope”
6. the bag containing the gas in a balloon

Synonyms for envelope

• gasbag

Words that rhyme with envelope

• hope
• dope
• grope
• rope
• scope
• soap
• cope
• lope
• mope
• slope
• telescope
• cantaloupe
• horoscope
• kaleidoscope
• pope
• tope
• allotrope
• antelope
• bronchoscope
• elope
• endoscope
• epitope
• gastroscope
• gyroscope
• heliotrope
• isotope
• laryngoscope
• microscope
• misanthrope
• ophthalmoscope