"Furl" is a verb that means to roll up, fold or coil something, especially a sail or flag. There are several synonyms for "furl" that can be used in different contexts. "Reef" is a nautical synonym that refers to reducing the size of a sail by folding or rolling it. "Wrap" is a general synonym that can be used to mean to roll up or enclose something within a material or substance. "Fold" is another synonym that means to bend or overlap something on itself, often to create a neat and compact shape. "Coil" is a synonym that means to wind something into a tight spiral or roll. All these synonyms for "furl" can be used interchangeably to add variety and richness to writing.