Congress vs Festival - What's the difference?

As a proper noun congress

is the two legislative bodies of the united states: the house of representatives, and the senate.

(es)

(archaic) A coming-together of two or more people; a meeting.

*, New York Review of Books, 2001, p.48:

After some little repast, he went to see Democritus […]. The multitude stood gazing round about to see the congress .

A formal gathering or assembly; a conference held to discuss or decide on a specific question.

(often capitalized: Congress ) A legislative body of a state, originally the bicameral legislature of the United States of America.

An association, especially one consisting of other associations or representatives of interest groups.

The National Congress of American Indians

Coitus]]; [[sexual intercourse, Sexual intercourse.

* (legislative body) assembly, legislature, parliament * (association) federation

* congressional, congressionally * congressman * congress gaiter, congress shoe * Congress Party

(wikipedia festival)

(en adjective)

Pertaining to a feast or feast-day. (Now only as the noun used attributively.)

* 1590 , Edmund Spenser, The Faerie Queene , II.iii:

the temple of the Gods [...] / Whom all the people decke with girlands greene, / And honour in their festiuall resort [...].

(en noun)

An event or community gathering, usually staged by a local community, which centers on some theme, sometimes on some unique aspect of the community.

In mythology, a set of celebrations in the honour of a god.