ich

noun1

1. •
   Ichthyophthiriasis, a parasitic infection of freshwater fish caused by ciliates of genus Ichthyophthirius.

   • Ich is one of the most common diseases of freshwater fish. — 1996

pronoun1

1. •
   (no longer used) I.

   • Ich haven't seen such foolishness before.

noun4

1. •
   Initialism of intangible cultural heritage.
2. •
   Initialism of intracranial hemorrhage.
3. •
   Initialism of intracerebral hemorrhage.
4. •
   Initialism of intracranial hematoma.