Word Type

Noun

The word "spacetime" can be used as a noun.

Word Relationships

Coordinate Terms

spatiotemporal temporospatial

Derived Terms

absolute space-time spacetime metric spacetime physics spacetime singularity

Derived From

space time

Context

physics relativity

Broader Terms (Hypernyms)

coordinate system frame of reference reference frame reference system

Related Terms

time-distance

Related Terms

continuum dimension four dimensional general relativity kaluza klein theory m theory physics space spatial theoretical time universe

Similar Terms

spatiotemporal temporospatial

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.