| Subject | English | Estonian |
| construct. | building envelope | hoone välispiire |
| comp., MS | digital envelope | digitaalne ümbrik (Private messages encrypted using the recipient's public key. Enveloped messages can only be decrypted by using the recipient's private key, allowing only the recipient to understand the message) |
| comp., MS | envelope journaling | ümbrikupõhine registreerimine (A type of message journaling in which the original unaltered message is included as an attachment in the journal report) |
| math. | envelope power function | mähis-võimsusfunktsioon |
| math. | envelope risk function | mähis-riskifunktsioon |
| fin. | financial envelope | rahastamispakett |
| transp., avia. | flight envelope | lennurežiimide diapasoon |
| comp., MS | message envelope | meiliümbrik (" The information contained in an e-mail message that is required to send and deliver a message between messaging servers by using SMTP protocol commands. The message envelope contains the sender e-mail address and the recipient e-mail address information. Recipients never see the message envelope, because it is not part of the message content, and it is discarded when the message reaches its destination. The X.400 messaging standard equivalent to the message envelope is called the "P1 header." The message envelope is often referred to as the "P1 header.") |
| comp., MS | message transfer envelope | sõnumiedastusümbrik (A MAPI message that holds the delivery information for a message) |
| transp., avia. | operational envelope | ohutud käituspiirid |
| commun., el. | peak envelope power | tipp-mähisvõimsus |
| commun., el. | peak envelope power of a radio transmitter | tipp-mähisvõimsus |
| transp., tech. | tyre envelope | rehvi väliskuju |