IAS or i.a.s.

1. Immediate access store (computing)
2. Immigration Advisory Service
3. Indicated air speed (aeronautics)
4. Instrument approach system

• pinions
• pinite
• pinites
• pin it on
• pin it onto
• pink
• pink-collar
• pinked
• pink elephants
• pinker
• Pinkerton
• Pinkertons
• pinkest
• pink-eye
• pink-eyed
• pink gin
• pink gins
• pinkie
• pinkier
• pinkies
• pinkiest
• pinkiness
• pinkinesses
• pinking
• pinking iron