The phrase "square chin" is a correct and usable part of a sentence in written English.
You could use it to describe someone's physical attributes in a descriptive paragraph, for example: John had a strong jawline with a square chin and piercing blue eyes.
McCarthy, a thirty-nine-year-old Irish-American with short brown hair and a square chin, is a third-generation policeman who grew up in North County.
Fay, who wears round eyeglasses and has a square chin and a shock of upstanding gray hair, found himself peppered with questions.
A twenty-eight-year-old white man, he had the stock handsomeness of an extra in a Western picture show: short brown hair, slate-blue eyes, square chin.
It is another to reproduce an image of that face, not only the deep-set eyes but the Roman nose and square chin.
THIS EPISODE'S ECHO ENGAGEMENT Echo was sent out to be the perfect date for a very tall man with a very square chin.
He is a superbly recognisable man, the two-tone specs between bald head and square chin, always in a wide-shoulder suit over tall-collar shirt, and he's hardly been out of sight in recent years.
Their distinctive faces reveal some of the characteristic acromegalic changes: Their brows are prominent, and they have wide, square chins and large noses.
Rectangle faces consist of square chins on an oblong-shaped face that is longer than it is wide.
Pictures of the young Depardieu in a good light suggest a rugged, brooding, if not classically good-looking man with a squared chin and mop of blonde hair.
Yeah, 'Buy the new Buick Commiemobile, the new Buick Proletariat.' " Mr. Forde, an amiable fellow with a square, jutting chin and a penchant for wearing sport coats and collarless shirts, looked admiringly at his panelists.
Select the head shape with the square pointy chin and choose the palest skin tone.
