noun
challenge, difficulty
B1
Herausforderung (die) means challenge or difficulty, often used for demanding tasks or problems. Common collocations: 'eine Herausforderung sein', 'vor einer Herausforderung stehen', or 'sich einer Herausforderung stellen'. Feminine noun with plural Herausforderungen. Regular declension. No auxiliary verb—it's a noun; not reflexive itself.
Examples
Die neue Aufgabe ist eine große Herausforderung für mich.
The new task is a big challenge for me.
Die neue Stelle ist eine große Herausforderung für sie.
The new position is a big challenge for her.
Die Schule betrachtete die Integration neuer Schüler als Herausforderung, obwohl die Klassen bereits voll waren.
The school considered the integration of new students a challenge, although the classes were already full.
Details
Mnemonics
Imagine someone climbing over a high wall labeled 'Herausforderung'
Think 'here' (heraus) + 'ford' (challenge) — a challenge to go out and 'ford' something
die Herausforderung — feminine like die Aufgabe (task) or die Chance (chance)
Notes
Herausforderung is a common formal word for 'challenge' or 'difficulty' used in work, education and personal contexts. Feminine noun.