Party vs. Fest

(legal) A person or group of people constituting a particular side in a contract or legal action.

Example: ‘The contract requires that the party of the first part pay the fee.’;

A person.

A person; an individual.

Example: ‘He is a queer party.’;

With to: an accessory, someone who takes part.

Example: ‘I can't possibly be a party to that kind of reckless behaviour.’;

A group of people forming one side in a given dispute, contest etc.

Active player characters organized into a single group.

(video games) A group of characters controlled by the player.

A political group considered as a formal whole, united under one specific political platform of issues and campaigning to take part in government.

Example: ‘The green party took 12% of the vote.’;

(military) A discrete detachment of troops, especially for a particular purpose.

Example: ‘The settlers were attacked early next morning by a scouting party.’;

A social gathering.

A gathering of usually invited guests for entertainment, fun and socializing.

Example: ‘I'm throwing a huge party for my 21st birthday.’;

A group of people traveling or attending an event together, or participating in the same activity.

Example: ‘We're expecting a large party from the London office.’;

A gathering of acquaintances so that one of them may offer items for sale to the rest of them.

Example: ‘Tupperware party’; ‘lingerie party’;

(obsolete) A part or division.

(intransitive) To celebrate at a party, to have fun, to enjoy oneself.

Example: ‘We partied until the early hours.’;

To take recreational drugs.

(intransitive) To engage in flings, to have one-night stands, to sow one's wild oats.

To form a party (with).

Example: ‘If you want to beat that monster, you should party with a healer.’;

Divided; in part.

(heraldry) Parted or divided, as in the direction or form of one of the ordinaries.

Example: ‘an escutcheon party per pale’;

(obsolete) Partly.

A part or portion.

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.

Example: ‘Win the noble Brutus to our party.’; ‘The peace both parties want is like to last.’;

A part of a larger body of company; a detachment;

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.

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.

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

Example: ‘The cause of both parties shall come before the judges.’;

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

Example: ‘If the jury found that the party slain was of English race, it had been adjudged felony.’;

Cause; side; interest.

Example: ‘Have you nothing saidUpon this Party 'gainst the Duke of Albany?’;

A person; as, he is a queer party.

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

Partial; favoring one party; partisan.

Example: ‘I will be true judge, and not party.’;

Partly.

an organization to gain political power;

Example: ‘in 1992 Perot tried to organize a third party at the national level’;

an occasion on which people can assemble for social interaction and entertainment;

Example: ‘he planned a party to celebrate Bastille Day’;

a band of people associated temporarily in some activity;

Example: ‘they organized a party to search for food’; ‘the company of cooks walked into the kitchen’;

a group of people gathered together for pleasure;

Example: ‘she joined the party after dinner’;

a person involved in legal proceedings;

Example: ‘the party of the first part’;

have or participate in a party;

Example: ‘The students were partying all night before the exam’;

A party is a gathering of people who have been invited by a host for the purposes of socializing, conversation, recreation, or as part of a festival or other commemoration or celebration of a special occasion. A party will typically feature food and beverages, and often music and dancing or other forms of entertainment.

(in combination) A gathering for a specified reason or occasion.

Example: ‘a Renaissance fest’;

The fist.

A feast.