There are many synonyms that can be used for the word "turtlenecks." Some of the common synonyms include polo necks, roll-neck sweaters, funnel-necks, mock necks, and cowl necks. These words are generally used to describe a type of sweater or shirt that has a high neckline that can be folded over to cover the neck. Turtlenecks are a popular fashion choice for both men and women, and they can be worn alone or paired with other clothing items. Whether you prefer a classic turtleneck or want to try out one of the other synonyms, there is a style to suit every taste.