This is the 473rd most frequent Swedish word.
ungefär
Approximately.
Here, "ungefär" is used to approximate a time, indicating that the action might occur slightly before or after the specified time.
Jag kommer att vara färdig ungefär klockan tre.
I will be finished around three o'clock.
In this sentence, "ungefär" is used to estimate a price, suggesting that the price might not be exact but close to the mentioned amount.
Den här boken kostar ungefär 200 kronor.
This book costs around 200 kronor.
Here, "ungefär" is employed to compare heights, indicating that his height is nearly the same as his brother's.