Translation guide
The English word 'occasion' covers several distinct meanings: a particular time or event, a special event, a suitable opportunity, and a reason or cause. Japanese expresses these with different words and patterns, and often the most natural translation depends on context rather than a single equivalent.
Referring to a specific moment or occurrence, often in phrases like 'on that occasion' or 'on several occasions'.
The most common and natural way to say 'on that occasion' or 'at that time'. Used in many set phrases.
On that occasion, he said nothing.
Used for hypothetical or conditional occasions, like 'in case of' or 'when such an occasion arises'.
Means 'on several occasions' or 'a number of times'. Very natural.
I have met him on several occasions.
Means 'on many occasions' or 'frequently'. Slightly formal.
Referring to a formal or significant event, such as a wedding, ceremony, or party.
The closest equivalent to 'occasion' as a special event. Often used in formal contexts.
Expressing that a moment is right for doing something, like 'take the occasion to...' or 'a good occasion to...'.
Also used for 'opportunity'. 'この機会に' means 'on this occasion' or 'taking this opportunity'.
Used in formal expressions like 'to have occasion to do something' meaning to have a reason or need.
Literally 'have an opportunity to', but often translates 'have occasion to'.
場合 (baai) is mainly for hypothetical or conditional situations. For a specific past occasion, use 時 (toki) instead.
On that occasion I was really surprised.
機会 (kikai) is more formal and often used for planned or meaningful occasions. チャンス (chansu) is casual and implies a lucky or timely opportunity.
I've been there on several occasions.
We help each other on difficult occasions.
On the occasion of an emergency, please call this number.
度々ご迷惑をおかけして申し訳ありません。
I apologize for causing trouble on many occasions.
Thank you for inviting me on such an occasion.
This is wine I saved for a special occasion.
Refers to a planned event or function, like a school event or annual festival.
I went to Kyoto for a school occasion (event).
Loanword for 'event', often used for casual or commercial occasions.
This event is a big occasion once a year.
I'd like to take this occasion to express my gratitude to everyone.
Casual loanword for 'chance', often used when occasion means a lucky break.
This is the last occasion (chance).
If you have occasion to see him, please give him my regards.
Means 'have a need to', used when 'occasion' implies necessity.
We had occasion to discuss the issue.
Please don't miss this occasion (formal).
This is your last chance (casual).
This is a special occasion.
Using 日 (hi) is natural for a celebratory day.
On the occasion of her birthday, we threw a party.
Often simply 'on her birthday' without a word for 'occasion'.