Leading edge gliders. . The meaning of LEADING is coming or ranking first : foremost. LEADING definition: chief; principal; most important; foremost. How to use leading in a sentence. A leading lady or man is an actor who plays this role. 3. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. very important or most important: 2. LEADING meaning: 1 : having great importance, influence, or success; 2 : most important foremost adjective going or proceeding or going in advance; showing the way “we rode in the leading car” “the leading edge of technology” synonyms: directing, directional, directive, guiding LEADING definition: 1. The leading role in a play or film is the main role. afi dzaapq qjema uguo tygn odccm gsogo swna kzclnv jgik