engagement >> /ɪnˈɡeɪdʒmənt/
Definition: [noun] A formal agreement to get married.
Example: she'd broken off her engagement to Paul
Definition: [noun] An arrangement to do something or go somewhere at a fixed time.
Example: a dinner engagement
Definition: [noun] The action of engaging or being engaged.
Example: Britain's continued engagement in open trading
Definition: [noun] A fight or battle between armed forces.
Example: the war's most significant engagements were fought to keep these sea lanes open