This is the 7692nd most frequent Japanese word.
単発
"単発" means "single occurrence" or "one-time event."
The word '単発' is used here to describe the event as occurring only once, not in a series.
これは単発のイベントです。
This is a one-time event.
Here, '単発' is used to denote a job that is non-recurring, typically temporary or for a single occasion.
単発のバイトを探しています。
I am looking for a one-off job.
In this sentence, '単発' is used metaphorically to describe an idea that was created for a specific instance or purpose.