IAS or i.a.s.

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

• frazzling
• fraîcheur
• fraîcheurs
• FRC
• FRCA
• FRCP
• FRCPS Glasg
• FRCS
• freak
• freaked
• freakful
• freakier
• freakiest
• freakiness
• freakinesses
• freaking
• freakish
• freakishly
• freakishness
• freakishnesses
• freak out
• freak-out
• freak-outs
• freaks
• freaky