To type (or format) text without leaving a blank line between each line of text. / To type (or format) text with only one space between consecutive sentences.

Sufficient space or a span of time in which to recover one's breath. / A rest, pause, or respite. / Enough distance so that one can feel unfettered.

(astronomy) That part of outer space between the planets of a solar system and its star

(anatomy) Any of the spaces between the placental villi that contain maternal blood

(mathematics) Any metric space whose elements are functions

(of text) Formatted so that there is a full blank line between each line of text; the style of formatting required by many entities inside business, academia, and publishing.

(letterpress typography) A piece of metal type used to create the narrowest space. / (typography, US) The narrowest space appearing between letters and punctuation.

(mathematics) Either of two spaces between which an isometry exists

(mathematics, physics) A coordinate system (or a frame of reference) defined with respect to the distant stars, whose relative positions do not change over reasonably long periods of time

any of several regions in a glow discharge in which little or no light is produced / (astronomy) the intergalactic void that exists between galaxies