Real Dictionary

Braille
uncountable noun: Braille is a system of printing for blind people. The letters are printed as groups of raised dots that you can feel with your fingers.

Braille in American English
noun: Louis (ˈluːɪs, ˈluːi, French lwi), 1809–52, French teacher of the blind
transitive verb: to write or transliterate in Braille characters

Braille in British English 1
noun: a system of writing for blind people consisting of raised dots that can be interpreted by touch, each dot or group of dots representing a letter, numeral, or punctuation mark

Braille in British English 2
noun: Louis (lwi ). 1809–52, French inventor, musician, and teacher of blind people, who himself was blind from the age of three and who devised the Braille system of raised writing