die Schoko
chocolate
Colloquial short form for chocolate.
Hast du noch ein Stück Schoko für mich?
Do you still have a piece of chocolate for me?

chocolate
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chocolate
Colloquial short form for chocolate.
Hast du noch ein Stück Schoko für mich?
Do you still have a piece of chocolate for me?

'Schoko' is a popular short form of 'Schokolade' (chocolate) and is often used as the first part of compound words. Examples include Schokokuchen (chocolate cake), Schokoeis (chocolate ice cream), or Schokoriegel (chocolate bar).
Möchtest du ein Schokocroissant zum Frühstück?
Would you like a chocolate croissant for breakfast?
The word 'Schoko' (chocolate) is used almost exclusively in colloquial speech and informal situations. In formal contexts, it is better to use the full word 'Schokolade' (chocolate).
Ich brauche für den Kuchen noch Schoko.
I still need chocolate for the cake.
Similar to other foods, 'Schoko' (chocolate) is often used without an article when talking about the material or substance in general.
Kinder essen gern Schoko.
Children like eating chocolate.
cocoa
'der Kakao' and 'die Schoko' both belong to the area of chocolate and sweet flavors. 'Kakao' can be a drink, for example warm milk with cocoa powder. It can also mean the powder used for baking or for drinks. 'Schoko' is colloquial and short for 'Schokolade' (chocolate). It refers more to the sweet food itself or to chocolate flavor. The words can be confused because chocolate is made from cocoa. In practical terms: you drink Kakao, and you eat Schoko or Schokolade.

Im Kuchen ist viel Schoko, deshalb schmeckt er sehr süß.
There is a lot of chocolate in the cake, so it tastes very sweet.
Nach dem Spaziergang trinkt das Kind einen warmen Kakao.
After the walk, the child drinks a warm hot chocolate.