1. (

• possibility ,

) a future prospect or potential; "this room has great possibilities" ;

2. (

• possibility ,
• possibleness

) capability of existing or happening or being true; "there is a possibility that his sense of smell has been impaired" ;

3. (

• hypothesis ,
• possibility ,
• theory ,

) a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena; "a scientific hypothesis that survives experimental testing becomes a scientific theory"; "he proposed a fresh theory of alkalis that later was accepted in chemical practices" ;

4. (

• possibility ,
• possible_action ,
• opening

) a possible alternative; "bankruptcy is always a possibility" ;