to last longer than the rest of sb's life; to reach the end or last until the end of sth
see sb out
to last longer than the rest of sb's life
I've had this coat for years, and I'm sure it will see me out.
see sth out
to reach the end or last until the end of sth
They had enough fuel to see the winter out.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición