This is the 15608th most frequent German word.
wichteg
Important.
Here, 'wichteg' is used as an adjective meaning 'important,' describing the value of the activity.
Es ist wichteg, jeden Tag etwas Neues zu lernen.
It is important to learn something new every day.
In this sentence, 'wichteg' again functions as an adjective, qualifying the noun 'Rolle' (role) to signify its significance.
Eine wichteg Rolle im Team zu übernehmen kann herausfordernd sein.
Taking on an important role in the team can be challenging.
'Wichteg' is used adjectivally here to highlight the importance of the information relative to its utility for the exam.