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a combining form used in the names of kinds of discourse, spoken or written: analogue; monologue; travelogue.
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Also -log.

Origin of -logue

<French <Latin -logus<Greek -logos.See logos
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023


What does -logue mean?

The combining form -logue is used like a suffix meaning “discourse,” either spoken or written. Discourse means “communication of thought by words.” The form -logue is often used in everyday and technical terms.

The form -logue comes from Greek -logos, meaning “word” or “discourse.” To learn more about logos, you can read our entry on the English word logos here.

What are variants of -logue?

Occasionally, particularly in American English, -logue is spelled without the final -ue, as in analog. Additional related forms include -logic and -logy. Want to know more? Read our Words That Use article on all three forms.

Examples of -logue

An example of a word you may have encountered that features -logue is monologue, “a form of dramatic entertainment, comedic solo, or the like by a single speaker.” Monologue comes from French monologue, which uses the equivalent of the form -logue in that language.

The mono- part of the word means “alone,” “single,” or “one,” from Greek mónos. As we already know, -logue means “discourse.” Monologue literally translates to “single discourse.”

What are some words that use the equivalent of the combining form -logue in Greek?

What are some other forms that -logue may be commonly confused with?

Not every word that ends with the exact letters -logue, such as catalogue or collogue, is necessarily using the combining form -logue to denote “discourse.” Learn why catalogue means “a complete list of items” at our entry for the word.

Break it down!

The combining form homo- means “same.” With this in mind, what does homologue literally mean?

How to use -logue in a sentence

British Dictionary definitions for -logue


US -log

n combining form
indicating speech or discourse of a particular kindtravelogue; monologue

Word Origin for -logue

from French, from Greek -logos
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012