quad
UK: kwɒd | US: kwɑːd
n. 1. A rectangular courtyard enclosed by buildings (e.g., in a college campus).
n. 2. Short for "quadruplet" (one of four siblings born at the same time).
n. 3. Informal abbreviation for "quadrilateral" or "quadriceps."
Derived from the Latin root quad- (meaning "four"), seen in words like quadrangle (four angles) and quadruped (four-footed animal). The term evolved in English to denote anything grouped in fours, from architectural spaces to biological terms. Its concise form makes it versatile in both formal and informal contexts.
Students gathered in the quad for the afternoon rally.
She is the youngest of the quad, born just minutes after her siblings.
His workout focused on strengthening his quads.
The university’s historic quad is lined with oak trees.
The robot was designed with a quad motor system for stability.