Noun

The state of being compatible; in which two or more things are able to exist or perform together in combination without problems or conflict.

(telecommunication) the capability of two or more items or components of equipment or material to exist or function in the same system or environment without mutual interference.

(computing) the ability to execute a given program on different types of computers without modification of the program or the computers. See backward compatibility and forward compatibility.

(computing) the capability that allows the substitution of one subsystem (storage facility), or of one functional unit (e.g. , hardware, software), for the originally designated system or functional unit in a relatively transparent manner, without loss of information and without the introduction of errors.

(structural analysis) the continuity or good fit of material or members or components while being deformed.

Noun

(possibilities)

The quality of being possible.

A thing possible; that which may take place or come into being.

* {{quote-magazine, date=2013-07-20, volume=408, issue=8845, magazine=(The Economist)

, title= The attack of the MOOCs , passage=Since the launch early last year of […] two Silicon Valley start-ups offering free education through MOOCs, massive open online courses, the ivory towers of academia have been shaken to their foundations. University brands built in some cases over centuries have been forced to contemplate the possibility that information technology will rapidly make their existing business model obsolete.}}

An option or choice, usually used in context with future events.