raus
out
Colloquial short form of 'heraus' or 'hinaus', describing movement from inside to outside.
Es ist so schönes Wetter, lass uns raus in den Garten gehen!
The weather is so beautiful, let's go out into the garden!

out
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out
Colloquial short form of 'heraus' or 'hinaus', describing movement from inside to outside.
Es ist so schönes Wetter, lass uns raus in den Garten gehen!
The weather is so beautiful, let's go out into the garden!

'Raus' is the colloquial and very common short form of 'heraus' or 'hinaus' (out). In written language or formal situations, you should use the long form.
Komm, wir gehen raus, das Wetter ist herrlich!
Come on, let's go out, the weather is wonderful!
As an indication of direction, 'raus' is often combined with verbs of movement, e.g. 'rausgehen' (to go out), 'rauskommen' (to come out), 'rausfahren' (to drive out), or used as the separable part of a verb.
Er hat den Müll schon rausgebracht.
He has already taken the trash out.
In the meanings 'veröffentlicht' (released) or 'ausgeschieden' (eliminated), 'raus' is used together with the verb 'sein' (to be) to describe a state.
Der neue Film ist seit letzter Woche raus.
The new film has been out since last week.
from / out
'aus' and 'raus' can both express movement from inside to outside. The difference is mainly in grammar and style. 'aus' is a preposition and is used with a noun, for example 'aus dem Haus' (out of the house). 'raus' is an adverb and is often used with a verb, for example 'rausgehen' (to go outside). Also, 'raus' is colloquial; in more formal situations, 'hinaus' or 'heraus' sounds better. The words are easy to confuse because both describe the same direction.

Vor dem Wochenende räumt Paul die alten Kartons aus dem Keller raus.
Before the weekend, Paul clears the old boxes out of the basement.
Nach dem Termin kommt die Kundin aus dem Büro.
After the appointment, the customer comes out of the office.