This is the 8076th most frequent German word.
insa
The word "insa" is not standard German; it may be a typo or colloquial. If you mean "in Sa.," it could mean "in Sachsen-Anhalt" (a German state). Please clarify the context.
Here, 'ins' is a contraction of 'in das', indicating movement into a specified location in German grammar.
Gehst du morgen ins Arbeitszimmer?
Are you going to the study room tomorrow?
In this case, 'ins' is used to denote action resulting in placement within a designated area. It's a contraction of 'in das', signifying 'into the shelf'.
Setze deinen Rucksack ins Regal.
Place your backpack on the shelf.
'Ins' here refers to movement toward a location, specifically 'into the cinema'. It is a shorthand form for 'in das Kino'.