curve
n. countablen. a line that bends smoothly and does not have any straight parts. You also use this word to describe a situation where someone rejects your romantic interest.
n. a line or surface that deviates from straightness in a continuous fashion. In modern informal register, it refers to the act of rejecting a romantic or social advance, often by ignoring the person.
The road has a sharp curve ahead.
She tried to ask him out on a date, but he gave her the curve by not replying to her messages.
The architect designed the building with a sweeping glass curve that reflects the surrounding landscape, creating a seamless visual transition between the structure and the park.
Attested since the 1690s, from Latin curvus (“bent, curved”), ultimately from Proto-Indo-European (s)ker- (“to bend, curve, turn”) + -wós. Doublet of curb, shrink, carcer, and cancer.
In its informal sense, it is often used in the phrase 'to throw someone a curve' or 'to give someone the curve'.