engagement

Definitions:

The act of engaging; obligation by agreement or contract; occupation; employment of the attention; the conflict of armies or fleets; battle; obligation or motive; that which engages.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (noun) (n.) (noun)
Betrothal; occupation; an appointment; in machinery, the state of being in gear; a battle between armies or fleets.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (noun) (n.) (noun)
An appointment; employment; a fight; a battle; an obligation; a compact.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (noun) (n.) (noun)
Act of engaging: state of being engaged: that which engages: promise: employment: a fight or battle.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (noun) (n.) (noun)
Act of engaging; state of being engaged; obligation; conflict.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (noun) (n.) (noun)

Usage examples:

Give me back my engagement ring.
- Sunny Slopes by Ethel Hueston
" No, thanks, I can't; I have an engagement he made answer.
- Prince Fortunatus by William Black
Of course you heard that her engagement to Mr. Jeffries was broken off?"
- The Story of Louie by Oliver Onions