This is the 5545th most frequent Japanese word.
かなっ
"かなっ" is a colloquial or emphatic form of "かな," used at the end of a sentence to express self-reflective thinking, uncertainty, or wondering, often translated as "I wonder" or "maybe."
The word 'かな' is used here as a post-particle indicating reflection or wondering.
これで良いかな。
I wonder if this is fine.
In this sentence, 'かな' expresses curiosity or uncertainty about an event.
彼はもう帰ったかな？
I wonder if he has already gone home.
Here 'かな' combines with 'どうだった' to express wondering about a past situation.