This is the 538th most frequent Finnish word.
tapahtuma
"Event" or "occurrence."
In this sentence, 'tapahtuma' refers to an 'event,' a planned or organized occasion.
Tämä on vuoden tärkein tapahtuma.
This is the most important event of the year.
Here, 'tapahtuma' is used to mean an 'incident,' something that occurred.
Kuinka tämä tapahtuma vaikutti sinuun?
How did this incident affect you?
In this usage, 'tapahtuma' implies an 'occurrence,' signifying something that happened.