Containing, or consisting of, two languages; expressed in two languages; as, a bilingual inscription; a bilingual dictionary.
- Using or able to use two languages, especially with equal or nearly equal fluency.
- Using two languages in some proportion in order to facilitate learning by students who have a native proficiency in one language and are acquiring proficiency in the other: bilingual training; bilingual education.
- Of, relating to, or expressed in two languages: a bilingual dictionary.
- A person who uses or is able to use two languages, especially with equal fluency.