| Env. enclosure | 14 |
| Env. extra | 10 |
| Env. filler | 11 |
| Env. in an env., e.g. | 21 |
| Env. in an env., say | 20 |
| Env. info | 9 |
| Env. inscription | 16 |
| Env. insert | 11 |
| Env. insertion | 14 |
| Env. insertions | 15 |
| Env. inserts | 12 |
| Env. inside an env., e.g. | 25 |
| Env. notation | 13 |
| Env. note | 9 |
| Env. notice | 11 |
| Env. router | 11 |
| Env. routing indicator | 22 |
| Env. science | 12 |
| Env. shape | 10 |
| Env. stuffer | 12 |
| Env. stuffing | 13 |
| Env. within an env., perhaps | 28 |
| Env. word | 9 |
| Envelop | 7 |
| Envelop in mist | 15 |
| Envelop, as a celebrity | 23 |
| Envelop, with "in" | 28 |
| Envelope abbr. | 14 |
| Envelope abbr. before a contact name | 36 |
| Envelope abbr. for Manhattan | 28 |
| Envelope abbr., sometimes | 25 |
| Envelope abbreviation | 21 |
| Envelope acronym | 16 |
| Envelope additions: Abbr. | 25 |
| Envelope attachment | 19 |
| Envelope back | 13 |
| Envelope closer | 15 |
| Envelope closers | 16 |
| Envelope closure | 16 |
| Envelope color | 14 |
| Envelope contents | 17 |
| Envelope contents: Abbr. | 24 |
| Envelope direction | 18 |
| Envelope encl. | 14 |
| Envelope enclosure | 18 |
| Envelope enclosure: Abbr. | 25 |
| Envelope enclosures (abbr.) | 27 |
| Envelope endearment | 19 |
| Envelope fastener | 17 |
| Envelope fasteners | 18 |
| Envelope feature | 16 |
| Envelope feature, perhaps | 25 |
| Envelope features | 17 |
| Envelope information | 20 |
| Envelope insert | 15 |
| Envelope instruction | 20 |
| Envelope item | 13 |
| Envelope item, for charity | 26 |
| Envelope letters | 16 |
| Envelope line: Abbr. | 20 |
| Envelope ltrs. | 14 |
| Envelope marking | 16 |
| Envelope material | 17 |
| Envelope of a sort | 18 |
| Envelope opener | 15 |
| Envelope opening | 16 |
| Envelope or memo abbr., perhaps | 31 |
| Envelope paper | 14 |
| Envelope part | 13 |
| Envelope part that's licked | 31 |
| Envelope parts | 14 |
| Envelope phrase | 15 |
| Envelope protecting a record | 28 |
| Envelope sealer | 15 |
| Envelope shortening | 19 |
| Envelope stamp | 14 |
| Envelope stick-on | 17 |
| Envelope sticker | 16 |
| Envelope stuff | 14 |
| Envelope stuffer | 16 |
| Envelope type | 13 |
| Envelope wd. | 12 |
| Envelope words | 14 |
| Envelope's contents | 23 |
| Envelope's contents, at times | 33 |
| Envelope's contents, often | 30 |
| Envelope's two letters | 26 |
| Envelope-directing abbr. | 24 |
| Envelope-flap material | 22 |
| Envelope-opening Johnny Carson character | 40 |
| Envelope-pushing | 16 |
| Envelope-pushing Hollywood gp. | 30 |
| Envelope-routing abbr. | 22 |
| Envelope-sealing aid | 20 |
| Enveloped | 9 |
| Enveloped by | 12 |
| Enveloped in darkness | 21 |
| Enveloped securely | 18 |
| Envelopes | 9 |
| Envelopes' enclosures: Abbr. | 32 |