a/o
Account Of (EBF)
A-O
Acoustic-Optic [Ophthalmology and otorhinolaryngology] (DAVI)
Acousto-Optic (MCD)
A & O
Actors and Others for Animals (EA)
Alert and Oriented (CPH)
April and October [Denotes semiannual payments of interest or dividends in these months] [Business term]
A/O
About or On (MCD)
Alert/Oriented [Medicine] (AMHC)
All Over the Hatch [or Hold] [Stowage] (DNAB)
Analog/Output (SAUS)
Answer/Originate (SAUS)
Aqueous to Organic [Ratio]
Axis of Orientation [Imaginary vertical line at the left of a block of text] [Also, mental margin] (WDMC)
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