(letterpress typography) A metal block used to separate words, one third of an em in width. / (typography) In digital text, a character representing a thick space.

(letterpress typography) A metal block used to separate words, one fifth of an em in width. / (typography) In digital text, a character representing a thin space.

(topology) A separable, completely metrizable topological space

Alternative spelling of breathing space

(topology) A space obtained from another by identification of points that are equivalent to one another in some equivalence relation.

(topology, idiomatic) A space obtained from another by identification of points that are equivalent to one another in some equivalence relation.

(topology) A topological space such that any open cover of the space has a countable subcover.

A non-breaking space.

plural of space ship

(music) A subgenre of rock music, characterised by long psychedelic instrumental passages and lyrics dealing with science fiction or outer space.