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isogram

1 8.4

A word that has no letter more than once

noun
/ˈaɪsəˌɡræm/

Jargon

: isograma

Creating an isogram can be challenging, especially with longer words.

Examples

An isogram is a unique word without repeating letters.
The word isogram itself is an example, as it contains no repeated letters.
In the puzzle, you had to find an isogram among a list of words.
The word isogram has no repeating letters.
An example of an isogram is the word 'lumberjack', which contains no repeating letters.
In the game, players must find an isogram from a list of given words without any letters being reused.
The word 'hydraulics' is a perfect isogram because each letter appears only once.

Surface Forms

isogram singular

isograms plural

Morphology

isogram = gram (semi-transparent) = iso + gram

Derived from 'iso-' (equal/same) + '-gram' (written/record); the metaphorical extension to 'word with no repeated letters' is somewhat specialized and not fully predictable for all learners.

Etymology

Isogram for a word with no repeated letters comes from Greek parts iso- 'equal' and -gram 'letter', the same root as monogram. So an isogram is a word where each letter appears the same number of times, often only once.