- (Received Pronunciation) IPA(key): /liːl/, enPR: lēl
- (General American) IPA(key): /lil/, enPR: lēl
- Homophone: leal
- Rhymes: -iːl
From Old French l'Isle (“the Island”), from Latin Īnsula, from īnsula (“island”), whence also île. The name was resegmented (like its Dutch counterpart Rijsel): in à l'Isle (“at the Isle”), the definite article came to be considered part of the name, and it was thus interpreted as à Lille.