The gill or teacup is a unit of measurement for volume equal to a quarter of a pint. It is no longer in common use, except in regard to the volume of alcoholic spirits measures.

Imperial

US

United Kingdom

Prior to metrication, in the United Kingdom, the standard single measure of spirits in a pub was 1/6 impgi in England and Northern Ireland, and either 1/5 impgi or 1/4 impgi in Scotland. After metrication, this was replaced by measures of either 25 or, at the discretion of the proprietor. However, a spirit measure in the Isle of Man is still defined as 1/5 impgi and 1/6 impgi in Northern Ireland. Half of a gill is a jack, or an eighth of a pint. But in northern England, a quarter pint could also be called a jack or a noggin, rather than a gill, and in some areas a half pint could be called a gill, particularly for beer and milk.

Scotland

In Scotland, there were additional sizes:

Ireland

In Ireland, the standard spirit measure was historically 1/4 gill and in both the Republic of Ireland and Northern Ireland, it still retains this value, though it is now legally specified in metric units as 1/4 impgi.

In popular culture

There are occasional references to a gill in popular culture, such as in:

Literature

Music

Television

Mispronunciation

Because of its more widely used homograph, gill has sometimes been mispronounced with a hard 'g' sound. In English, the sound of soft ⟨g⟩ is the affricate /dʒ/, as in general, giant, and gym.