to write on the exterior of, the surface of, or above.
to write (something) on the exterior of an object, such as a document or an envelope.
To address (an envelope etc.).
A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.
Something that envelops; a wrapping.
A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.
A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects.
A curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics.
The shape of a sound, which may be controlled by a synthesizer or sampler.
An enclosing structure or cover, such as a membrane; a space between two membranes
The set of limitations within which a technological system can perform safely and effectively.
The nebulous covering of the head or nucleus of a comet; a coma.
An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.
alternative spelling of envelop
