What does II stand for?

Interchangeable Item

iPath Optimized Currency Carry ETN

Preprocessed C source code (gcc)

Interactive Interface

Imbroglio Islands

I'm impressed

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Iconworkshop Extended Information File

I

Current or Interlocked armor of aluminum, bronze or steel. Or Ice, Instantaneous current, Integral, linear impulse, mass moment of inertia, second moment of area, Index, Current, immediate, individual or Short form for injection indicating that the engine is fuel-injected, e.g., GTi, EFi, 1.6i, SSEi or A lamp employing an electrically charged metal filament that glows at white heat.