What does gal mean?
Gal is an informal English word for a woman or girl, long established in casual American speech. It arose as a relaxed spoken variant of 'girl' and became a fixture of everyday conversation, popular song, and mid-century banter, often appearing in phrases like 'gal pal' or 'gal Friday'. Its connotations are warm and familiar rather than formal: calling someone a gal signals friendliness and ease, though in modern formal writing 'woman' remains the standard choice, and some listeners may find the term quaint or mildly patronising. Separately, the word survives in science as the name of a small unit of acceleration — one centimetre per second per second — adopted in honour of Galileo Galilei and still used in gravimetry, the precise measurement of gravitational pull. In daily life, however, gal is best understood as easygoing colloquial shorthand for a female person, a word whose charm lies in its old-fashioned, sociable flavour.
An informal term for a woman or girl.
"He introduced her as the nicest gal in town."
Informal and somewhat old-fashioned; best reserved for casual or nostalgic registers.
In physics, a unit of acceleration equal to one centimetre per second per second, used chiefly in measuring gravity.
"Local gravity at the survey site was recorded as 979.6 gals."
Technical usage confined mainly to geophysics and gravimetry; rarely encountered outside scientific literature.
The plural follows ordinary English noun formation; 'gals' is used informally to refer to a group of women or girls.
"A group of gals from the office organized the surprise party."
'Gal' began life as folksy slang for 'girl' — yet physicists quietly borrowed the same spelling for their unit of acceleration, named after Galileo himself.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of gal
The word gal developed as an informal spoken variant of 'girl', emerging in English — especially American English — as a casual rendering of how the older word was pronounced in rapid speech. It became widespread in the nineteenth century and flourished in twentieth-century popular culture, from vaudeville to jazz-age song lyrics. The scientific unit of the same name was coined in honour of Galileo Galilei, pioneer of studies of falling bodies, and entered technical use in the field of gravimetry. The two senses are unrelated in origin despite sharing a spelling.
How gal is actually used
As a term for a woman, gal is distinctly informal and carries a folksy, retro, or affectionate tone; it can feel dated or patronising in formal contexts, so 'woman' is preferred in professional writing. The scientific sense (unit of acceleration) belongs almost entirely to technical literature on gravity measurement.
Easily confused with gal
Gall refers to bitterness, boldness, or a blister-like swelling on plants, whereas gal is simply an informal word for a woman or girl.
A gale is a strong wind, while gal is a colloquial term for a female person.