1. Plural of el; elevated railways, especially the elevated rapid-transit system in a city.
Usage: Informal; Chiefly North American
2. Plural of el; the letter L or anything shaped like the letter L.

Examples

• The Chicago els are a famous landmark of the city.
• She took the els to get downtown quickly.
• The old els rumbled overhead as the train passed by.
• Many cities have replaced their els with modern subway systems.
• The els connected different neighborhoods in the metropolitan area.