(law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature); "the rationale for capital punishment"; "the principles of internal-combustion engines"
the successful action of solving a problem; "the solution took three hours"
a method for solving a problem; "the easy solution is to look it up in the handbook"
a statement that solves a problem or explains how to solve the problem; "they were trying to find a peaceful solution"; "the answers were in the back of the book"; "he computed the result to four decimal places"
the set of values that give a true statement when substituted into an equation
a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution; "he used a solution of peroxide and water"
a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.; "the explanation was very simple"; "I expected a brief account"
the act of explaining; making something plain or intelligible; "I heard his explanation of the accident"
a show of military force or preparedness; "he confused the enemy with feints and demonstrations"
a public display of group feelings (usually of a political nature); "there were violent demonstrations against the war"
proof by a process of argument or a series of proposition proving an asserted conclusion
a visual presentation showing how something works; "the lecture was accompanied by dramatic demonstrations"; "the lecturer shot off a pistol as a demonstration of the startle response"