What does SP. stand for?

What does SP. mean?

SP	Sugar Pie Miscellaneous » Food
SP	Singular Perturbation Academic & Science » Physics
SP	Studio Package Community » Media
SP	Super Pocket Miscellaneous » Unclassified
SP	Superultramodern Physics Academic & Science » Physics
SP	Second Purchase Miscellaneous » Unclassified
SP	Social Points Internet » Chat
SP	Special Partner Business » General
SP	Sports Plane Community » Sports
SP	Suggested Page Community » Media
SP	Smart Price Miscellaneous » Unclassified
SP	Spirit Points Community » Sports
SP	Super Portable Miscellaneous » Unclassified
SP	Surprisingly Poor Community
SP	Sneaky Pete Miscellaneous » Names and Nicknames
SP	Sg Petani Miscellaneous » Unclassified
SP	Security Potential Computing » Security
SP	Sequence Point Miscellaneous » Unclassified
SP	Street Portrait Community » Performing Arts
SP	South Pasture Miscellaneous » Farming
SP	Subject Phrase Academic & Science
SP	Semi Plenary Governmental » US Government
SP	Scattering Path Miscellaneous » Unclassified
SP	Special Pocket Miscellaneous » Unclassified
SP	Simple Precision Miscellaneous » Unclassified