(geometry) A kind of geometrical space in which only relation(s) of incidence between points and lines matter; in such a space distances or angles do not matter and parallelism (as in an affine space) does not matter either.

spacesynth music

(computing) Space on a hard disk used as auxiliary memory.

(anatomy) An anatomic space between two ribs, containing the intercostal muscles, nerves, arteries, veins and lymph nodes.

(BDSM, neologism) The state of mind a little enters when they are comfortable engaging in ageplay.

(informal) A hairstyle consisting of twin buns worn on top of the head.

(geography) The area within which a person moves, acts, and makes decisions about what they do

An open-air area, such as a park or public garden with no (or very few) buildings, often in an urban area and designated by a local authority or government as such.

(topology) A topological space X (generally assumed to be connected) together with a continuous map μ : X × X → X with an identity element e such that μ(e, x) = μ(x, e) = x for all x in X.

The air space used by unmanned aerial vehicles