IAS or i.a.s.

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

• shoulder knots
• shoulder mark
• shoulder marks
• shoulder note
• shoulder notes
• shoulder-of-mutton sail
• shoulder-of-mutton sails
• shoulder pad
• shoulder pads
• shoulder plane
• shoulder planes
• shoulders
• shoulder-shotten
• shoulder slip
• shoulder-slipped
• shoulder slips
• shoulder strap
• shoulder straps
• shoulder surfing
• shoulder to shoulder
• shouldest
• shouldn't
• shouldst
• shout
• shout blue murder