さんか参加sanka
1.

The act of becoming a member of a group or organization with a shared purpose, engaging in collective activities or events alongside other members.

2.

In a legal context, the involvement of individuals or entities that are not parties to a legal relationship in the matters pertaining to that relationship.

Example:

あなたは競技に参加しましたか。

さんかしゃ参加者sankasha
1.

A person who takes part in an event, activity, or competition, actively engaging in the expected tasks or responsibilities.

2.

An individual who joins a gathering or group, contributing to the collective experience or purpose of the occasion.

3.

Someone who enrolls or registers for a specific program, event, or contest, thereby becoming part of the involved community.

4.

A member of a discussion or meeting, contributing thoughts and opinions while interacting with others in the group.

Example:

その部屋は参加者の熱気でムンムンしていた。

さんかきぼうしゃ参加希望者sankakibousha
1.

Individuals who express a desire to take part in an event or activity.

2.

People who are inclined to join or engage in a specific experience or opportunity.

3.

Candidates who show intent or interest in becoming involved in a certain undertaking or event.

ふさんか不参加fusanka
1.

The state of not taking part in an event, activity, or group, often implying a deliberate choice to refrain.

2.

A condition where an individual or group opts out of involvement or engagement in a specific situation or collective effort.

さんかこく参加国sankakoku
1.

The country that actively engages in a specified event, organization, or agreement, contributing to collective efforts or collaboration.

2.

A nation that is involved in an international activity or conference, playing a role in decision-making or negotiations.

3.

A state that takes part in a cooperative framework or treaty, sharing responsibilities and objectives with other nations.

4.

A member country in a multilateral initiative, participating in discussions and actions aimed at addressing common interests or challenges.

Example:

サミット参加国は、自由貿易問題を協議事項のトップにおいています。