A small, flat piece of sparkling metallic or metal-like material with a hole which is sewn on to a garment, etc., for decoration; a sequin. / A shiny particle of a mineral. / (figuratively) A star.

(also figuratively) To fix spangles or sparkling objects to (something); to bespangle. / (figuratively) To adorn or decorate (something). / (intransitive) To flash, glitter, or sparkle.

(physiology) The portion of the respiratory tract that is ventilated but not perfused by pulmonary circulation.

the totality of information, especially that which is accessible online

Any of various small to medium-sized breeds of gun dog having a broad muzzle, long, wavy fur and long ears that hang at the side of the head, bred for flushing and retrieving game.

To follow loyally or obsequiously, like a spaniel.

(physics) vacuum; a space free of matter. / Used other than figuratively or idiomatically: see free, space.

(mathematics) Euclidean space described by Cartesian coordinates.

Ordinary two- or three-dimensional space, characterised by an infinite extent along each dimension and a constant distance between any pair of parallel lines.

(idiomatic, UK) To introduce a problem, dilemma or obstacle, something unexpected or troublesome.