fifteen

This number comes up often in everyday life. It names a quantity of 15 things, sits between fourteen and sixteen, and is common in counting, time, prices, and ages. You see it in phrases like fifteen minutes, 15% off, or age fifteen, when someone is usually in the middle of their teen years.

It also appears in a few familiar set uses. A quarter of an hour is fifteen minutes, a Rugby Union team has fifteen players on the field, and in tennis, fifteen is the name of the first point in a game. The word is simple, but it appears in many ordinary parts of life.

Fifteen represents the quantity of one dozen plus three. It is the natural number that comes after fourteen and before sixteen. In math, it is a composite number with the factors 1, 3, 5, and 15, so it appears in basic counting, multiplication, division, and simple percentage work.

Outside math, fifteen is often used for age, time, and everyday amounts. Age fifteen is widely understood as part of the middle teenage years, often linked with growing freedom and responsibility. In many Latin American cultures, a quinceanera celebrates a girl's fifteenth birthday as an important life event.

In time, fifteen minutes is a quarter of an hour, so the word is common in schedules, breaks, and appointments. It also shows up in sports. In tennis, fifteen is the name of the first point in the score, and in Rugby Union, a full team has fifteen players on the field.

From counting objects to talking about age, time, sports, and celebrations, fifteen has a broad and practical use in English. It is an ordinary word, but it carries clear meaning in many common situations.