Translation guide
The English verb 'solve' is used for finding answers to problems, puzzles, mysteries, or equations. In Japanese, different verbs are used depending on what is being solved. The most common equivalent is 解決する (kaiketsu suru) for problems and issues, while 解く (toku) is used for puzzles, riddles, and math problems. This guide helps learners choose the right expression based on the object.
Expressing that a difficulty, trouble, or problematic situation is resolved.
The most common and versatile verb for solving problems, issues, or conflicts. Used in both formal and casual contexts.
The problem was solved immediately.
We must solve this issue.
Often used for resolving negative states like stress, anxiety, or dissatisfaction. Implies elimination or relief.
Please tell me how to solve (relieve) stress.
Literally 'to tidy up', but can mean to settle or solve a matter, often with a nuance of finishing it off. Casual.
Let's solve this matter quickly.
Finding the answer to a puzzle, riddle, mystery, or code.
The standard verb for solving puzzles, riddles, mysteries, and codes. Also used for untying knots.
He solved the mystery.
It took an hour to solve this puzzle.
Specifically refers to the act of solving a mystery or riddle, often used in the context of games or detective work.
I like puzzle-solving games.
Finding the solution to a mathematical problem or equation.
Used for solving math problems, equations, and formulas. Same verb as for puzzles.
Please solve this equation.
He easily solved the difficult math problem.
Means 'to answer' or 'to give a solution', often used in academic or test contexts. More formal than 解く.
Please solve (answer) this problem.
Finding the perpetrator or resolving a criminal investigation.
Used for solving crimes, cases, or incidents. Often used in news or formal contexts.
The police solved the case.
Means 'to investigate', but can imply solving a crime through investigation. Not a direct translation of 'solve'.
They are investigating (trying to solve) the murder case.
Bringing an end to a disagreement or conflict.
解く (toku) is used for concrete, often intellectual tasks like puzzles, math problems, and riddles. 解決する (kaiketsu suru) is used for abstract problems, issues, and conflicts. Using 解く for a social problem sounds unnatural.
For personal issues like relationship problems or life difficulties, 解決する is appropriate. 解く would sound like you are treating them as a puzzle.
彼が仲裁に入って争いを収めた。
He intervened and solved (settled) the dispute.