tying vs ligature

tying and ligature both are nouns.

Word	Noun	Adjective	Verb	Adverb
tying	Yes	No	No	No
ligature	Yes	No	No	No

As nouns, tying and ligature are synonyms defined as:

tying (noun)	ligature (noun)
the act of tying or binding things together	the act of tying or binding things together
	something used to tie or bind
	thread used by surgeons to bind a vessel (as to constrict the flow of blood)
	a metal band used to attach a reed to the mouthpiece of a clarinet or saxophone
	(music) a group of notes connected by a slur
	character consisting of two or more letters combined into one