This is the 16634th most frequent Polish word.
wróciłam
"I returned" (feminine, first person singular).
This form emphasizes a completed action in the past, referring specifically to the speaker's (and assumably female due to the form) return.
Wróciłam ze sklepu po godzinę.
I came back from the store after one hour.
Here, it reflects a reasoned return, emphasizing causality linked to the return action.
Wróciłam, ponieważ zapomniałam kluczy.
I came back because I forgot my keys.
In this instance, it implies reflection on the act of returning, giving insight into a personal occurrence.