Dictionary.com
Thesaurus.com

IA

1 American  

abbreviation

  1. Iowa (approved especially for use with zip code).

-ia 2 American  

  1. a noun suffix having restricted application in various fields, as in names of diseases (malaria; anemia ), placenames (Italia; Romania ), names of Roman feasts (Lupercalia ), Latin or Latinizing plurals (Amphibia; insignia; Reptilia ), and in other loanwords from Latin (militia ).

Ia. 3 American  

abbreviation

  1. Iowa.

i.a. 4 American  

abbreviation

  1. in absentia.

-ia 1 British  

suffix

  1. occurring in place names

    Albania

    Columbia

  2. occurring in names of diseases and pathological disorders

    pneumonia

    aphasia

  3. occurring in words denoting condition or quality

    utopia

  4. occurring in names of botanical genera

    acacia

    poinsettia

  5. occurring in names of zoological classes

    Reptilia

  6. occurring in collective nouns borrowed from Latin

    marginalia

    memorabilia

    regalia
"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
Ia. 2 British  

abbreviation

  1. Iowa

"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 -ia

From New Latin, Latin, Greek, equivalent to -i- (formative or connective) or -ī- ( Greek -ei- ) + -a, feminine singular or neuter plural noun or adjective ending

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.

"That would be a catastrophe. He's going to be so furious," Aqqaluk Lynge, a founder of IA, said of Trump.

From Barron's • Mar. 8, 2026

En vísperas de este curso escolar, he hablado con muchos profesores de primaria y secundaria, administradores escolares y miembros del profesorado universitario sobre su opinión acerca de la IA en la actualidad.

From New York Times • Sep. 1, 2023

Sin embargo, la suposición de que todo el mundo utiliza la IA fuera de clase puede estar más cerca de la realidad de lo que muchos docentes creen.

From New York Times • Sep. 1, 2023

En segundo lugar, las escuelas deberían dejar de apoyarse en los programas detectores de IA para atrapar a los tramposos.

From New York Times • Sep. 1, 2023

Whence it is evident that this wave of semi-diameter mn, and the other of semi-diameter IA will have the same tangent BA.

From Treatise on Light by Huygens, Christiaan

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.