a character representing one or more of the sounds used in speech; any of the symbols of an alphabet

a capital letter

a written, typed, or printed communication, sent in an envelope by post or messenger

he sent a letter to Mrs Falconer

the precise terms of a statement or requirement; the strict verbal interpretation

the officer in the incident got in trouble for following the letter of the law

we must keep the spirit of the law as well as the letter

literature

the world of letters

a style of typeface

inscribe letters or writing on

her name was lettered in gold

be awarded an emblem, in the shape of the initial letter of the name of one’s school or university, for achievement in sport

in high school she lettered in soccer, basketball and softball