IPA: /ˈtrʌbəlˌmeɪkɪŋ/
KK: /ˈtrʌbəlˌmeɪkɪŋ/
The act of causing problems or disturbances, often by behaving in a disruptive manner.
His troublemaking led to several arguments among the group.
Troublemaking is formed from "trouble" (from Old French *trouble*, meaning disturbance or confusion) and "making" (from Old English *macian*, meaning to make or create). The word refers to the act of creating disturbances or causing problems.
Think of 'trouble' as creating 'disturbance' and 'making' as the act of creating — so troublemaking means creating disturbances.