1. To equip or train someone or group of people for war: The armed forces was militarizing, or mobilizing, the soldiers with weapons.
2. To convert something such as a piece of land or a building for soldiers to use: The vacated lot was militarized with housing for the troops.
3. To persuade somebody to support a policy of aiding and promoting the armed forces: The officer tried to militarize the group of students on the street with the principles and spirit of the army.