Inside the Universes

Words with a similar base: envelope

[envelope.n.01] as in: a flat (usually rectangular) container for a letter, thin package, etc.

[envelope.n.02] as in: any wrapper or covering

[envelope.n.03] as in: a curve that is tangent to each of a family of curves

[envelope.n.04] as in: a natural covering (as by a fluid)

[envelope.n.05] as in: the maximum operating capability of a system (especially an aircraft)

[envelope.n.06] as in: the bag containing the gas in a balloon