INTERSECT Meaning of INTERSECT in English ■ verb divide (something) by passing or lying across it. ↘(of lines, roads, etc.) cross or cut each other.OriginC17 (earlier (C16) as ~ion ): from L. ~- , intersecare 'cut, ~'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004