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infra

1 American  
[in-fruh] / ˈɪn frə /

adverb

  1. below, especially when used in referring to parts of a text.

infra- 2 American  

  1. a prefix meaning “below,” used, with second elements of any origin, in the formation of compound words.

    infrasonic; infrared.
infra- 1 British  

prefix

  1. below; beneath; after

    infrasonic

    infralapsarian
"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
infra 2 British  
/ ˈɪnfrə /

adverb

  1. (esp in textual annotation) below; further on

"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

Etymology

Origin of infra1

1730–40; < Latin infrā; under

Origin of infra-2

< Latin, representing infrā, adv. or preposition

Compare meaning

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“We come away more constructive on Nvidia’s inference strategy, and view Nvidia as the clear AI infra leader,” wrote KeyBanc analyst John Vinh in a research note.

From Barron's • Mar. 17, 2026

The infra push is also something that will have long-term payoffs.

From BBC • Apr. 30, 2024

"The AI infra will enable it to provide accurate recommendations and cross sell products and services across its giant network of clients in retail, telecom, and financial space," he said.

From Reuters • Sep. 8, 2023

But loving is nothing if not embarrassing, its expressions always a little infra dig.

From Los Angeles Times • Oct. 5, 2022

Dens cardinalis unicus, brevis, irregularis, simplex aut bipartitus, substriatus; dentes laterales duo, elongati, compressi, infra pubem producti.

From Zoological Illustrations, Volume I or Original Figures and Descriptions of New, Rare, or Interesting Animals by Swainson, William

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.