Crewneck (noun)

A style of shirt or sweater that has a round neckline, as opposed to a v-neck or turtleneck.

Origin:

The origin of the word 'crewneck' is uncertain, but it is thought to refer to the round neckline that resembles a crew neckline commonly seen on sailor's shirts.

Examples:

1. She wore a soft, comfortable crewneck sweater on the plane.
2. He preferred the classic look of a white crewneck t-shirt.
3. The crewneck sweatshirt was a staple in his casual wardrobe.
4. The crewneck of the shirt was snug, but not too tight.
5. The crewneck design is versatile and can be dressed up or down.