1 Monica (given name) 2  Monica (singer), R&B singer. 3  Monica (actress), an Indian film actress.  Saint Monica, mother of Augustine.
Definition of triangulation for English Language Learners. : a method of finding a distance or location by measuring the distance between two points whose exact location is known and then measuring the angles between each point and a third unknown point.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  trilingual(Noun) A trilingual person. 2  trilingual(Adjective) Able to read or speak three languages. 3  trilingual(Adjective) Expressed or written in three languages.