Wiktionary
boatneck
n. A wide, high neckline that follows the curve of the collarbone and ends in points on the shoulder seams.
Usage examples of "boatneck".
He was dressed in a blue boatneck shirt, white cotton slacks, and white canvas Top-Siders.
She wore an outfit Lela had chosen: a red boatneck top with a calf-length black skirt.
She wore a short-sleeved, boatneck top with horizontal red-and-white stripes, white canvas pants, and tennies without socks.