S/O


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AcronymDefinition
S/OSexual Orientation
S/OSpin Off
S/OSon Of
S/OSex Offender
S/OShutoff
S/OService Order (various companies)
S/OSold Out
S/OSwitchover
S/OShout Out
S/OShip Owner
S/OShipping Order
S/OSignificant Other
S/OSecurity Officer
S/OStarting Offer
S/OSurfactant to Oil