a kind of writing with constraints consisting of writing full paragraphs or books in which a particular symbol, such as that fifth symbol in talks in which it is most common, is missing
a piece of writing produced without the use of a certain letter, or group of letters
a piece of writing which omits a particular letter
A lipogram (from Greek lipagrammatos, "missing letter") is a kind of constrained writing or word game consisting of writing paragraphs or longer works in which a particular letter or group of letters is missing, usually a common vowel, the most common in English being e (McArthur, 1992). A lipogram author avoiding e then only uses the 25 remaining letters of the alphabet.