IPA: /ɪnˈtɜːr.sɛkt/
KK: /ɪnˈtɜrˌsɛkt/
To cross or meet at a point; to share a common point or line.
The two roads intersect at the traffic light.
Past: intersected
Past Participle: intersected
To cut across or through something, or to meet and cross at a point.
The two lines intersect at a right angle.
Past: intersected
Past Participle: intersected
Intersect → It is formed from "inter-" (meaning between) and "secare" (meaning to cut). The word describes the action of cutting between two lines or paths, where they meet or cross each other.
Picture two lines that 'cut' ('secare') 'between' ('inter-') each other — that's how you remember that 'intersect' means to cross or meet.