This is the 17312th most frequent Russian word.
съехала
"sъехала" means "moved down" or "left" (past tense, feminine form).
In this sentence, 'съехала' denotes the act of moving out from a residence.
Она успешно съехала из квартиры.
She successfully moved out of the apartment.
Here, 'съехала' is used to describe the car deviating from the road.
Ее машина съехала с дороги в кювет.
Her car went off the road into a roadside ditch.
In this case, 'съехала' refers to an object physically sliding from its position.