solver

UK: /ˈsɒlvəʳ/

WordReference Random House Learner's Dictionary of American English © 2025

solve /sɑlv/   v. [~ + object] , solved, solv•ing. 

1. to find the answer or explanation for:
   to solve a puzzle.
2. Mathematics to work out the answer or solution to (a mathematical problem):
   Solve the equation when x is equal to 3.

solv•a•ble, adj. 
solv•er, n. [countable] See -solv-.

WordReference Random House Unabridged Dictionary of American English © 2025

solve  (solv), v.t., solved, solv•ing. 

1. to find the answer or explanation for;
   clear up;
   explain:
   to solve the mystery of the missing books.
2. Mathematics to work out the answer or solution to (a mathematical problem).

• Latin solvere to loosen, free, release, dissolve
• late Middle English solven 1400–50

solv′er, n. 
Synonyms

• 1. resolve, unravel, untangle, crack.