Definition of "bilingual"

Since she is bilingual she has them written in both English and Spanish.

1998, Bruce Fife, The Birthday Party Business, page 176

All signage in and around the station is bilingual in Welsh and English, while station announcements and passenger information screens provide real-time information.

2020 December 30, Paul Stephen, “Chirk station is truly blooming”, in Rail, page 48

Ocasio-Cortez’s trolling went bilingual in November when a Fox News show, “The Story,” had a prime-time discussion about Ocasio-Cortez’s shoes, including an acknowledgment that the network spent a lot of time talking about a woman who had not even been sworn into Congress yet.

2018 December 12, Cleve R. Wootson Jr., “Alexandria Ocasio-Cortez’s new favorite pastime appears to be trolling conservative critics”, in The Washington Post‎