(functional analysis) A normed vector space which is complete with respect to the norm, meaning that Cauchy sequences have well-defined limits that are points in the space.

(mathematics, physics, dynamical system theory) Given a (dynamical) system, any topological space such that every point in the space's underlying set uniquely represents a state of the system and every possible state is represented by some point;

(uncountable) The state or quality of being sparse. / (countable, rare) The result or product of being sparse.

Anything that sparkles. / A hand-held firework that emits sparks. / (slang) A gem or ornament that sparkles. / A vivacious and charismatic person. / (informal) A sparkling wine. / A tiger beetle.

The property of being sparse; sparseness.

In a spare manner; sparsely or frugally.

Free time.

(initially derogatory) A subgenre of speculative fiction or science fiction that emphasizes space travel, romantic adventure, and larger-than-life characters often set against vast exotic settings.

A component of any manufactured goods, kept in reserve to replace one that fails; a spare.

(mathematics, geometry) A space where the principles of Euclidean geometry apply.