Describes something of great significance, consequence, or urgency. Often used in warnings, advice, and evaluations.
Health is the most important thing.
I have something important to talk about, so could you give me some time later?
Used for things held dear emotionally or materially, such as keepsakes, relationships, or cherished items.
This is a precious ring I received from my grandmother.
Please treasure your family.
serious matter; major incident; crisis
Refers to a grave situation, trouble, or a matter of serious concern. Often used in the phrase 大事になる (to become a big deal).
See also: 大事 (おおごと)
A small mistake turned into a serious matter.
Let's take action before a crisis occurs.
great undertaking; great enterprise; great thing
Refers to an ambitious project, a significant endeavor, or a major achievement. Often used in historical or formal contexts.
This project is a great national undertaking.
He accomplished a great thing.
Dialectal use (Tochigi) meaning 'safe' or 'all right', equivalent to standard 大丈夫 (だいじょうぶ). Rare outside that region.
See also: 大丈夫
In the Tochigi dialect, when asked 'Daiji?', it means 'Are you okay?'.
It's important to take care of your health.
This is a precious memory of mine.
A small mistake turned into a big problem.
My family is very important to me.
無事に (safely, without incident) shares the kanji 事 with 大事 (important, serious) and learners sometimes mix them up despite the very different meanings.
very serious matter; momentous event