Entry 2 senses Webster, 1913 Intersection /ĭnˌ-tẽrs-ĕk'-shən/ · In·ter·sec·tion · IPA /ˈɪntəɹˌsɛkʃən/ 01 n. The act, state, or place of intersecting. 1. The act, state, or place of intersecting. 2. The point or line in which one line or surface cuts another.(Geom.)