Academy of Science
• Admiral Superintendent
• admittance spectroscopy
• Education Advanced Supplementary (in AS level )
• air speed
• air staff
• airline flight code for Alaska Airlines
• Insurance all sections
• Music al segno (Italian: to (or at) the sign)
• Meteorol. altostratus
• Geology aluminium silicate
• American Samoa
• Computing analogue states
• (or A-S) Anglo-Saxon
• (small caps.) anno salutis (Latin: in the year of salvation)
• (small caps.) anno Salvatoris (Latin: in the year of the Saviour)
• Chem. anodic stripping
• antisubmarine
• Assistant Secretary
• assistant surgeon
• Associate in Science
• British vehicle registration for Inverness
• Taxation , symbol for personal allowance