Definition

A word or phrase in which no letter occurs more than once.

Example

The word 'lumberjack' is an isogram because it has no repeating letters.

Conversation

Have you ever heard of an isogram?

Yeah, I think it’s a word that has no repeating letters, right?

Exactly! I just learned about it while playing a word game.

That sounds fun! I should try to find some isogram words too.

Synonyms & Antonyms

Root Explanation

Isogram → It is formed from "iso-" (from Greek "isos", meaning equal) and "gram" (from Greek "gramma", meaning something written or a letter). The word "isogram" refers to a word or phrase in which no letter occurs more than once, hence having equal representation of letters.

Memory Tip

Think of 'equal' ('iso-') letters in a word — that's why an isogram means a word with no repeating letters.

Visually Confused Words