Trilingual (adjective)

Able to speak, write, or read three languages fluently.

Origin:

The word "trilingual" is a compound of "tri" meaning three and "lingual" meaning language, and it has been used since the 19th century.

Examples:

1. She was trilingual and spoke Spanish, French and English fluently.
2. Being trilingual can be an advantage in today's globalized world.
3. Trilingual education is becoming increasingly popular in schools.
4. Trilingualism is a valuable skill in many professional fields.
5. Trilingualism can help to promote better communication and understanding among people.