This is the 197th most frequent Estonian word.
haapsalu
"Haapsalu" is a proper noun referring to a resort town in western Estonia.
In this example, 'Haapsalu' is used attributively to describe the origin of the person, indicating that they are from Haapsalu.
Haapsalust pärit inimene rääkis mulle oma kodulinna ajaloost.
A person from Haapsalu told me about the history of their hometown.
Here, 'Haapsalu' is used as an attributive noun to describe the bridge, specifying it as related to the area of Haapsalu.
Kas sa tead, kus asub Haapsalu sild?
Do you know where the Haapsalu bridge is located?
In this sentence, the word 'Haapsalu' refers to the geographical location, the town named Haapsalu in Estonia.