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• IA
  IA

  abbreviation

  Iowa (approved especially for use with zip code).
• -ia
  -ia

  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.
  Ia.

  abbreviation

  Iowa.
• i.a.
  i.a.

  abbreviation

  in absentia.

IA

¹ American  

abbreviation

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

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-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 ).

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Ia. ³ American  

abbreviation

1. Iowa.

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i.a. ⁴ American  

abbreviation

1. in absentia.

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-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

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Ia. ² British  

abbreviation

1. Iowa

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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

"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

If a statement is marked IA, apparently it is both primary and secondary, clearly an impossibility.

From Practical Argumentation by Pattee, George K.

The IA version itself lacks two of the illustrations found in this copy: Grumpy Nearly Catches Paddy Muskrat and Grumpy Calls on Mrs. Hen.

From The Tale of Grumpy Weasel Sleepy-Time Tales by Smith, Harry L.

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

In the same way IA would stand for the current in the filament circuit.

From Letters of a Radio-Engineer to His Son by Mills, John