What's another word for liner?

What's another word for liner depends on context, as liner has multiple meanings, but synonyms include lining, inner layer, interlining, underlay, insert, and coating. In clothing, another word for liner is lining, inner lining, underlining, or interlining for layer inside garment. In bags, another word is lining or inner lining. In makeup, liner synonyms include pencil, eyeliner or lip liner but alternative terms are definer or outline. In construction or packaging, another word for liner is lining, membrane, barrier, or sheet. For trash, liner synonym is bag, trash bag, or bin liner. In shipping, liner can mean shipping line or vessel. In writing, one-liner synonym is joke, quip, or witticism. So another word for liner is lining for fabric context, insert for protective context, and lining or membrane for barrier context, with most common general synonym being lining, as liner and lining are often used interchangeably to describe inner layer that lines inside of something.