envelope

Etymology 1
From. The engineering sense is derived from. The verb is from the noun.

Noun

 * 1) A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.
 * 2) Something that envelops; a wrapping.
 * 3) A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.
 * 4)  A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects.
 * 5)  A curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics.
 * 6)  The shape of a sound, which may be controlled by a synthesizer or sampler.
 * 7)  The information used for routing a message  that is transmitted with the message but not part of its contents.
 * 8)  An enclosing structure or cover, such as a membrane; a space between two membranes
 * 9)  The set of limitations within which a technological system can perform safely and effectively.
 * 10)  The nebulous covering of the head or nucleus of a comet; a coma.
 * 11) An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.
 * 1)  An enclosing structure or cover, such as a membrane; a space between two membranes
 * 2)  The set of limitations within which a technological system can perform safely and effectively.
 * 3)  The nebulous covering of the head or nucleus of a comet; a coma.
 * 4) An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.
 * 1)  The nebulous covering of the head or nucleus of a comet; a coma.
 * 2) An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.
 * 1) An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.

Translations

 * Acehnese:
 * Albanian:
 * Amharic:
 * Arabic: مُغَلَّف, لِفَافَة, ظرف
 * Egyptian Arabic: ظرف
 * Armenian:
 * Assyrian Neo-Aramaic: ܠܦܵܦܵܐ
 * Asturian:
 * Azerbaijani:, konvert
 * Basque: sobre
 * Belarusian: канве́рт
 * Bengali: ,
 * Breton:
 * Bulgarian:
 * Burmese:
 * Catalan:, sobre de carta
 * Chinese:
 * Cantonese: 信封
 * Hokkien:
 * Mandarin:
 * Czech:
 * Danish: ,
 * Dutch: ,
 * Esperanto: koverto
 * Estonian: ümbrik
 * Finnish:
 * French:
 * Galician:
 * Georgian: კონვერტი
 * German: ,
 * Greek:
 * Gujarati: પરબીડિયું
 * Hausa:
 * Hebrew:
 * Hindi: लिफ़ाफ़ा,
 * Hungarian: ,
 * Icelandic:
 * Ido:
 * Indonesian:
 * Ingrian: konvertti
 * Interlingua: inveloppe
 * Irish: clúdach litreach,
 * Italian:
 * Japanese:
 * Javanese:
 * Kannada:
 * Kazakh: конверт
 * Khmer: ស្រោមសំបុត្រ
 * Konkani:
 * Korean:
 * Kurdish:
 * Northern Kurdish:
 * Kyrgyz: конверт
 * Lao:, ຊອງຈົດໝາຍ
 * Latin: thēca
 * Latvian: aploksne
 * Lingala:
 * Lithuanian: vokas
 * Lü: ᦏᦳᧂᦟᦻ
 * Luxembourgish: Enveloppe
 * Macedonian: плик, коверт
 * Malay:
 * Malayalam:
 * Maori: kōpaki
 * Marathi: लिफाफा
 * Mongolian:
 * Cyrillic: ,
 * Ngazidja Comorian: ɓahasha
 * Norman: env'loppe
 * Norwegian:
 * Bokmål:
 * Occitan:
 * Odia: ଲିଭୋପା
 * Pashto:
 * Persian: ,
 * Plautdietsch: Kwarkj
 * Polish:
 * Portuguese:
 * Punjabi:
 * Romanian:
 * Russian:
 * Scottish Gaelic: cèis, cèis-litreach
 * Serbo-Croatian:
 * Cyrillic: о̀мотница, ко̀ве̄рта, коверат
 * Roman:, , koverat
 * Slovak: obálka
 * Slovene: ovojnica
 * Spanish:
 * Swahili:
 * Swedish: ,
 * Tagalog:
 * Tajik: лифофа,
 * Tamil:
 * Tatar: конверт
 * Telugu:
 * Tetum:
 * Thai: ซองจดหมาย,
 * Tibetan: ཡིག་སྐོག
 * Tigrinya:
 * Turkish:
 * Turkmen:
 * Ukrainian: конве́рт
 * Urdu: لِفافَہ
 * Uyghur: كونۋېرت
 * Uzbek:
 * Vietnamese: ,
 * Welsh:
 * Wolof:
 * Yiddish: קאָנווערט
 * Yoruba:


 * Arabic: غِلَاف
 * Belarusian: абго́ртка
 * Bulgarian:
 * Dutch:
 * Finnish:, ,
 * German:
 * Greek:
 * Latin: involūcrum
 * Macedonian: обвивка
 * Polish: otoczka,
 * Portuguese:
 * Romanian: învelitură,
 * Russian:
 * Sanskrit:
 * Serbo-Croatian:
 * Cyrillic: омо̀та̄ч
 * Roman:
 * Swedish: ,
 * Ukrainian: обго́ртка, заго́ртка


 * Belarusian:
 * Finnish:
 * German:
 * Portuguese:
 * Romanian: ,
 * Russian:
 * Swedish:
 * Ukrainian:


 * Finnish:
 * French:
 * German: Hüllkurve
 * Greek: περιβάλλουσα
 * Polish: obwiednia
 * Romanian: ,
 * Russian:
 * Tagalog: bilot


 * Estonian: mähisjoon
 * Finnish: verhokäyrä
 * Polish: obwiednia
 * Russian:


 * Finnish: verhokäyrä
 * Japanese: エンベロープ
 * Polish: obwiednia
 * Russian:


 * Finnish:


 * Belarusian:
 * Finnish:
 * Greek: περιχιτώνιο,
 * Romanian:
 * Russian:
 * Ukrainian:


 * Finnish: rajakäyrä
 * Greek:


 * Romanian: (tire);  (tangent to a family of objects)

Verb

 * 1)  To put (something) in an envelope.

Etymology 2
See.

Pronunciation

 * for audio, see envelop
 * for audio, see envelop

Etymology
, from.