Noun:
1: solution a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution; "he used a solution of peroxide and water"
2: solvent, solution, answer, result, resolution 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"
3: solution a method for solving a problem; "the easy solution is to look it up in the handbook"
4: root, solution the set of values that give a true statement when substituted into an equation
5: solution the successful action of solving a problem; "the solution took three hours"