IPA: /ˈtɜːrtləˌnɛkt/
KK: /ˈtɜrtlˌnɛkt/
Describing someone who is wearing a type of sweater or shirt that has a high, close-fitting collar that covers the neck.
She looked stylish in her turtlenecked sweater during the winter.
Turtlenecked → It is formed from "turtle" (from the Old French *tortue*, meaning a type of reptile) and "neck" (from Old English *necc*, meaning the part of the body connecting the head to the rest). The word describes a style of clothing that has a high, close-fitting collar resembling the neck of a turtle.
Imagine a turtle with its neck pulled in — that's why a turtleneck has a high collar that wraps closely around the neck.
No commonly confused words.