"Shoestrings" is a common term used to describe the thin pieces of material or lace that tie up shoes. However, there are several synonyms for this word that can be used alternatively. Some of these synonyms include "shoelaces," "laces," "tie-up strings," "bootlaces," "ties," "laces for footwear," and "shoe ties." These terms can be used interchangeably to help describe the same item. It is important to note that while these terms may be different, they all serve the same purpose in keeping footwear securely fastened to the feet. So feel free to use any of these synonyms when referring to shoestrings or laces!