WordReference Random House Unabridged Dictionary of American English © 2024Men′ai Strait′ (men′ī),USA pronunciation - Place Namesa strait between Anglesey Island and the mainland of NW Wales. 14 mi. (23 km) long.
Collins Concise English Dictionary © HarperCollins Publishers::
Menai Strait /ˈmɛnaɪ/ n - a channel of the Irish Sea between the island of Anglesey and the mainland of NW Wales: famous suspension bridge (1819–26) designed by Thomas Telford and tubular bridge (1846–50) by Robert Stephenson. Length: 24 km (15 miles). Width: up to 3 km (2 miles)