tyranniser bedeutet auf Englisch

bully [bullied, bullying, bullies]▼◼◼◼(to act aggressively towards)
verb
[UK: ˈbʊ.li] [US: ˈbʊ.li]John is being bullied by Mary. = John est tyrannisé par Marie.

tyrannize [tyrannized, tyrannizing, tyrannizes]▼◼◼◻(oppress someone)
verb
[UK: ˈtɪ.rə.naɪz] [US: ˈtɪ.rə.naɪz]