IC

Short definition from Wiktionary

Proper noun

1. 1
   Initialism of Index Catalogue (part of the NGC survey of J.L.E. Dreyer’s update to the Herschel General Catalogue).
2. 2
   Initialism of interstitial cystitis (a type of chronic pain that affects the urinary bladder).
3. 3
   Initialism of Iligan City.
4. 4
   Initialism of Intelligence Community.
5. 5
   Initialism of Integrated Coach (a school bus manufacturer).

Noun

1. 1
   Initialism of independent contractor.
2. 2
   Initialism of irreducible complexity.
3. 3
   Initialism of intercalation compound.
4. 4
   Initialism of ion chromatography.
5. 5
   Initialism of integrated circuit.
6. 6
   Initialism of intensive care.
7. 7
   Initialism of immune complex.
8. 8
   Initialism of identity card.
9. 9
   Initialism of individual contributor.
10. 10
    Initialism of incel.
11. 11
    Initialism of intermittent catheterization.
12. 12
    Initialism of integrity constraint.
13. 13
    Initialism of incident commander.

Adjective

1. 1
   Pseudo-acronym of icy.
2. 2
   Initialism of in charge.
3. 3
   Initialism of in command.
4. 4
   Initialism of in character.
5. 5
   Initialism of intracloud.

Phrase

1. 1
   Pseudo-acronym of I see.

Symbol

1. 1
   A Roman numeral representing ninety-nine (99).