A colloquial short form borrowed from English for sister ('sister'). The term is often used affectionately for one's own sister or a very close female friend.
example
Hey Sis, hast du heute Abend schon was vor?
Hey sis, do you already have plans for tonight?
Usage tips
Register and style
'Sis' is a very colloquial and informal term. It is used mainly in youth language or in very relaxed, familiar contexts.
EXAMPLE
Ich gehe heute Abend mit meiner Sis ins Kino.
I'm going to the movies with my sis tonight.
Word origin
This word is an Anglicism. It is a direct borrowing and shortening of the English word 'sister.'
EXAMPLE
Der Einfluss von Social Media hat dazu geführt, dass Wörter wie „Sis“ auch im Deutschen populär sind.
The influence of social media has led to words like 'Sis' becoming popular in German as well.
Use as a form of address
'Sis' is especially often used as a direct form of address for a sister or a close female friend, similar to how one might use 'Schatz' (sweetheart) or 'Liebling' (darling) in German.
EXAMPLE
Sis, kannst du mir mal kurz helfen?
Sis, can you help me for a second?
Compare with
near_synonym · confusable
Sis vs Freundin
girlfriend / female friend
'die Freundin' and 'die Sis' can both refer to a very close female person. 'die Freundin' is normal standard German and can have two meanings: a female partner in a romantic relationship or a good female friend. 'die Sis' is very colloquial and comes from English. It is used affectionately for one's own sister, or sometimes for a very close female friend. Learners may confuse the words because both express closeness. 'Freundin' fits in almost all situations, but the exact meaning must be clear from the context. 'Sis' fits more in casual speech among young people or in very familiar language.
Sis
Nach der Arbeit ruft Emma ihre Sis an, um ihr alles zu erzählen.
After work, Emma calls her sis to tell her everything.
Freundin
Meine Freundin kommt morgen mit zur Veranstaltung.
My girlfriend is coming with me to the event tomorrow.