synonym Comparative
約束する
VS
履行する
Differences Between "約束する" and "履行する"
Option A
約束する
Meaning
to promise, to make an appointment
Reading
やくそくする (yakusoku suru)
Syllabus Level
N4
Practical Example
友達と週末に会う約束をしました。
I made a promise to meet my friend on the weekend.
Option B
履行する
Meaning
to fulfill (a duty, contract, promise), to perform
Reading
りこうする (rikousuru)
Syllabus Level
N2
Practical Example
彼は契約上の義務をすべて履行した。
He fulfilled all his contractual obligations.
Which one to use?
Select the correct Japanese word for this context
Which word fits this context: "(to promise, to make an appointment)"?
🎉 正解 / Correct!
使い分け解説:
- 約束する: Used for both making a promise (e.g., to do something) and setting an appointment (e.g., to meet someone). (何かをすると「約束する」場合と、誰かと会う「約束」をする場合の両方に使われます。)
- 履行する: A formal term, typically used in legal or business contexts, referring to the execution or fulfillment of obligations, contracts, or promises. (義務や約束などを、その通りに行う。)
- 約束する: Used for both making a promise (e.g., to do something) and setting an appointment (e.g., to meet someone). (何かをすると「約束する」場合と、誰かと会う「約束」をする場合の両方に使われます。)
- 履行する: A formal term, typically used in legal or business contexts, referring to the execution or fulfillment of obligations, contracts, or promises. (義務や約束などを、その通りに行う。)
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