This is the 633rd most frequent Swedish word.
dog
The Swedish word "dog" means "died" in English.
Here, "dog" is used as the past tense of the Swedish verb "dö", meaning "to die".
Hennes hund dog förra veckan.
Her dog passed away last week.
In this usage, "dog" appears to be a construction rather than in its typical meaning, possibly a typographical error or misspelling in Swedish.
Jag såg en bild där en hund dog en boll.
I saw a picture where a dog fetched a ball.
Again, "dog" is the past tense of the verb "dö" (to die).