n (countable) A cord or similar thing used to tie something; especially the thread used in surgery to close a vessel or duct.
n (countable|typography) A character that visually combines multiple letters, such as æ, œ, ß or ij; also logotype. Sometimes called a typographic ligature.
n (countable|music) A group of notes played as a phrase, or the curved line that indicates such a phrase.