だいじ大事daiji
1.

Referring to matters that hold significant weight or consequence, often demanding serious attention or careful consideration due to their potential impact on a larger context, such as the well-being of individuals or the stability of an organization.

2.

Describing something that is of utmost importance relative to all other concerns, indicating that it requires priority action or focus in a given situation, often highlighting its critical nature in decision-making or planning.

3.

Expressing the state of being careful or mindful about something valuable, suggesting that it should not be compromised or treated casually, as it is treasured and essential for well-being or success.

4.

Indicating the degree to which a situation may become grave or problematic if neglected or mishandled, emphasizing the urgency of addressing the issue at hand to avoid serious repercussions.

Example:

あなたの親切な言葉は大事に心に刻みつけておきます。

おおごと大事oogoto
1.

An important issue or situation that must be addressed due to its significant implications or consequences.

2.

A matter of such importance that it takes precedence over lesser issues and demands careful consideration.

3.

A critical event or circumstance that, if mishandled, could lead to serious repercussions for an individual or organization.

4.

A situation or condition that carries considerable weight, necessitating urgent attention or action due to its potential seriousness.

5.

Something that is treasured or highly valued, warranting careful handling to avoid loss or damage.

いちだいじ一大事ichidaiji
1.

A highly significant event or situation that requires urgent attention and cannot be ignored.

2.

A matter of great importance, often involving serious consequences or grave implications.

3.

An occurrence that is considered critical or momentous, representing a pivotal point that calls for decisive action.

4.

In a spiritual context, an essential event concerning enlightenment or the salvation of sentient beings.

だいじけん大事件daijiken
1.

An occurrence of significant importance that has a substantial impact on a community or society.

2.

A noteworthy event that often attracts public attention and can lead to widespread discussion or concern.

3.

A serious situation or calamity that is pivotal in nature and can influence future circumstances or developments.

Example:

これは空前の大事件として歴史に残るでしょう。

ごしょうだいじ後生大事goshoudaiji
1.

The belief in or practice of cherishing something as being extremely valuable, often with an emphasis on its spiritual or religious significance, reflecting a deep commitment to its importance in one's life or afterlife.

2.

An attitude that prioritizes the pursuit of comfort and peace in the afterlife, treating such aspirations with great seriousness and dedication in one's actions and decisions.

3.

The act of treating something as irreplaceable, emphasizing its significance not only in the present but also in the context of future existence or spiritual well-being.

Example:

彼女はそれを後生大事にとっておいた。