This is the 915th most frequent Bulgarian word.
живее
"Живее" means "lives" (as in resides or exists).
The word "живее" refers to a third person singular present tense of the verb "живея," which means "to live," indicating the place where Maria resides.
Мария живее в София.
Maria lives in Sofia.
In this sentence, "живее" describes that the subject (he) cohabitates or resides with his parents.
Той живее с родителите си.
He lives with his parents.
Here, "живее" expresses the manner or quality of living, followed by the adverb "щастливо" to describe a joyful life.