If I want to express myself gender neutral I always use the male version of nouns, as this feels to me to be the "default".
My colleague in the office is always nice.
Mein Kollege im Büro ist immer nett.
My question now is if there actually is a rule in the German language about using the "male version" of the word as the neutral/default expression.
This is not about being politically correct but rather because I want to know if there is a default version for neutral expressions or if I should use the according genus of the word appropriate to the person talked about even if it is not relevant for the context.
Example: A female colleague help to implement a certain feature.
Diese Funktionalität wurde, mit Hilfe einer Kollegin, implementiert.
Diese Funktionalität wurde, mit Hilfe eines Kollegen, implementiert.
Which would be the proper expression, in regards to the fact that this is a professional environment and the gender is completely irrelevant?
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