What is Autosave?

Autosave definition and meaning on Dictionary terms:
a feature of a software program that automatically saves an open document or file: I like to live dangerously and turn off the autosave feature in my word processor. an instance of this function: an autosave every three minutes.

verb (used with object), auA.toA.saved,
to save (a document or file) using this feature.

verb (used without object), auA.toA.saved,
to be automatically saved: Most video games autosave after each new level.