The term singularity has several different meanings:
- mathematical singularity - a point where a mathematical function goes to infinity or is in certain other ways ill-behaved.
- gravitational singularity - an infinity occurring in an astrophysical model, involving infinite mass in a geometrical point (infinite density).
- technological singularity - a projected short period of extremely fast technological progress.
- consciousness singularity - an expanded, globally-encompassing state of consciousness.