RLE

RLE stands for:

Right-to-left embedding , see bidirectional control characters
AG Ruhr-Lippe-Eisenbahnen , a railway company
Run-length encoding , a compression algorithm, see Run Length Encoding
RLE International , an engineering service provider
Rico Linhas Aéreas (ICAO code), Brazilian airline
Religion, livssyn og etikk (German religion, philosophy of life and ethics ), a former subject in Norway

RLE as a distinguishing sign on license plates: