Noah Webster's New International Dictionary of the English Language

1. (n.) A part or portion.

2. (n.) A number of persons united in opinion or action, as distinguished from, or opposed to, the rest of a community or association; esp., one of the parts into which a people is divided on questions of public policy.

3. (n.) A part of a larger body of company; a detachment; especially (Mil.), a small body of troops dispatched on special service.

4. (n.) A number of persons invited to a social entertainment; a select company; as, a dinner party; also, the entertainment itself; as, to give a party.

5. (n.) One concerned or interested in an affair; one who takes part with others; a participator; as, he was a party to the plot; a party to the contract.

6. (n.) The plaintiff or the defendant in a lawsuit, whether an individual, a firm, or corporation; a litigant.

7. (v.) Hence, any certain person who is regarded as being opposed or antagonistic to another.

8. (v.) Cause; side; interest.

9. (n.) A person; as, he is a queer party.

10. (v.) Parted or divided, as in the direction or form of one of the ordinaries; as, an escutcheon party per pale.

11. (v.) Partial; favoring one party.

12. (adv.) Partly.