IAS or i.a.s.

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

• Ken.
• kenaf
• kenafs
• Kendal green
• kendo
• kendos
• kenned
• kennel
• kennel-coal
• kenneled
• kenneling
• kennelled
• kennelling
• Kennelly-Heaviside layer
• Kennelly layer
• kennelmaid
• kennelmaids
• kennelman
• kennels
• kenner
• kenners
• kennet
• kennets
• Kennick
• kenning