understand

理解する、分かる

聞いたことや読んだことの意味が分かる。

やさしい英語で： If you hear or read something, you know what it means.

• I understand this word.
• Did you understand what she said?
• He understood the instructions after reading them twice.

使い方： understand what/how/why… (I don't understand what this sentence means.)

類義語： get, comprehend, grasp

反対語： misunderstand

よく使う表現： understand a question, understand someone, understand the instructions

理解する、熟知する

物事や状況を、適切に対応できるほどよく知っている。

やさしい英語で： You know a subject, activity, or situation well enough to deal with it properly.

• He understands computers well.
• The team understood the task and started work.
• You must understand the rules before you can coach others.

使い方： understand how something works (She understands how the heating system works.)

類義語： know, comprehend, grasp

よく使う表現： understand the system, understand the task, understand the business

理解する、納得する

気に入らなくても、事実だと認めたり納得したりする。

やさしい英語で： You recognize a fact or accept that something is true, even if you dislike it.

• I understand that rules are necessary.
• She understood why they had refused her request.
• We understand your decision, although we are disappointed.

使い方： understand that… (I understand that the tickets cannot be refunded.); understand why… (We understand why the road must stay closed.)

類義語： recognize, appreciate, accept

よく使う表現： understand the reason, understand the situation, understand the principle