Noun

(uncountable) Doubt; the condition of being uncertain or without conviction.

*

, title=(The Celebrity), chapter=4 , passage=“Well,” I answered, at first with uncertainty , then with inspiration, “he would do splendidly to lead your cotillon, if you think of having one.” ¶ “So you do not dance, Mr. Crocker?” ¶ I was somewhat set back by her perspicuity.}}

* {{quote-news, year=2012, date=April 9, author=Mandeep Sanghera, work=BBC Sport

, title= Tottenham 1-2 Norwich , passage=After spending so much of the season looking upwards, the swashbuckling style and swagger of early season Spurs was replaced by uncertainty and frustration against a Norwich side who had the quality and verve to take advantage}}

(countable) Something uncertain or ambiguous.

(uncountable, mathematics) A parameter that measures the dispersion of a range of measured values.

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.