To set someone or something free from a situation, especially imprisonment or oppression. The soldiers were sent to liberate the hostages from the captors.
To release someone from social or economic constraints or discrimination. The movement aimed to liberate women from traditional gender roles.
To free a country, city, or people from enemy occupation. The allied forces worked together to liberate the occupied territories during the war.
To release a substance, especially a gas or energy, as the result of a chemical or physical process. The decomposition of the compound liberates oxygen.
Informal, often humorous: to steal or take without permission. Someone had liberated a few slices of cake from the kitchen.