This is the 7532nd most frequent Swedish word.
strömbäck
"Strömbäck" is not a standard Swedish word but can function as a proper noun, potentially referring to a surname or place name.
The word 'strömbäck' is used as a proper noun referring to a specific location, hence it's capitalized.
Strömbäck är namnet på en liten by i Sverige.
Strömbäck is the name of a small village in Sweden.
Here, 'Strömbäck' again functions as a proper noun signifying the geographical location in the sentence.
Jag passerade Strömbäck när jag körde mot Umeå.
I passed by Strömbäck when driving towards Umeå.
In this sentence, 'Strömbäck' is part of the name of a specific nature reserve, indicating its relevance as a geographical reference.