Sign language linguistics

/sˈaɪn lˈaŋɡwɪdʒ lɪŋɡwˈɪstɪks/

/sˈaɪn lˈæŋɡwɪdʒ lɪŋɡwˈɪstɪks/

the field of study that focuses on the structure, grammar, and usage of sign languages used by Deaf communities