(informal) Designating a time when something will become available, supposedly (but perhaps only optimistically) in the near future.

(linear algebra, mathematical analysis) A vector space over the field of real numbers.

(mathematics) The complete Archimedean ordered field (of real numbers).

(mathematics) A geometric representation of the real number system.

(video games, speedrunning) A non-tool-assisted speedrun of a game that is timed using a separate timer from that of any in-game timer.

plural of real-time attack

(rare) Any religion inspired by popular culture, especially one that imitates a work of fiction.

plural of hyper-real religion

Real estate that is owned by a forecloser.

(geometry) A three-dimensional vector space over the field of real numbers in which one-dimensional linear subspaces are considered as “points” and two-dimensional linear subspaces are considered as “lines”. Equivalently, a sphere in which pairs of antipodal points are considered as “points” and great circles are considered as “lines”.