征讨

征讨	zhēng tǎo	to go on a punitive expedition
征	zhēng	journey / trip / expedition / to go on long campaign / to attack
征	zhēng	to invite / to recruit / to levy (taxes) / to draft (troops) / phenomenon / symptom / characteristic sign (used as proof) / evidence
讨	tǎo	to invite / to provoke / to demand or ask for / to send armed forces to suppress / to denounce or condemn / to marry (a woman) / to discuss or study