When we think of turtleneck, the first thing that comes to mind is a sweater with a high, folded collar that covers the neck. But did you know that there are several other synonyms you can use to describe this clothing item? For instance, a mock turtleneck has a neckline that stands up but does not fold over. A funnel neck sweater also has a high collar, but it is wider at the top than at the bottom. You can also use the term polo neck or roll neck to refer to this style of sweater. All these alternatives add versatility and variety to your fashion vocabulary.