To be the first party in some situation to give in or back down.

(Roman Catholicism) The first time that a person, usually a child, receives the sacrament of Communion.

(US, chiefly baseball, dated) The half of the standings containing the teams with the best records.

plural of first-rate

(Scotland, Northern England) The first person to enter the home of a household on New Year's Day.

plural of First Worlder

Somebody from the First World.

(idiomatic, slang) A nonexistent day; a day that will never come.

plural of first flush

(horticulture) The first growth of buds, flowers, seeds, or whatever is harvested from a plant. / (by extension) The beginning; the period of time when something is first starting.