What is the meaning of за-?

to begin doing (describing an action of commencing)

perfectivizes verbs

describing an intensified or extreme action or an action of doing something up to the point that an object becomes junk

to begin doing (describing an action of commencing)

behind, beyond

perfectivizes verbs

behind, beyond

to begin doing (describing an action of commencing)

in advance (describing an action of doing something ahead of time)

perfectivizes verbs

to the finish, to the end (describing a completed result)

describing an action of covering something, of being covered, or hiding behind something

describing an intensified or extreme action or an action of doing something up to the point that an object becomes junk

describing an action that implies the existence of barriers, obstacles, or hindrance

to do with abandonment

trans-

Source: wiktionary.org