25th

Quarter-century mark

The ordinal form of twenty-five, indicating position in a sequence: She finished 25th in the race, the 25th anniversary.

Often appears in dates: December 25th, the 25th of the month.

A 25th anniversary is traditionally called a silver anniversary.

anniversary

silver

Lustrous white precious metal

milestone · quarter-century · wedding · renewal · vows · ceremony · reception · party · toast · gift

ordinal

rank

Position in hierarchy

ordering · percentile · quartile · ranking · standing · slot · spot · place · numbered · sequential

amendment

succession

Following in order

ratification · disability · vacancy · Nixon · Ford · Watergate · transfer · power · incapacity · confirmation

Opposites
ordinal vs cardinal number type

25th25

Five times five

twenty-five · cardinal · cardinal number

position in sequence

25th1st

Earliest in order

first · last · final · 100th · penultimate

numerical roundness

25th10th

Ordinal of ten

50th · 100th · 20th · millionth · 1000th

Phrases
Family

fifth, fifths

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G