The full form of "ST" depends on the context. There isn't one single definitive answer. Here are some possibilities:
1. Scheduled Tribes
In the context of Indian government classifications, ST stands for Scheduled Tribes. These are groups of people recognized by the Indian Constitution as having a distinct culture, language, and way of life, often marginalized and historically disadvantaged. [Source: Byjus.com, SC – Scheduled Castes, ST – Scheduled Tribes, OBC – Other Backward Classes]
2. Street
In addresses and common usage, "St" is an abbreviation for Street. For example, "Main St" means "Main Street". [Source: Quora.com]
3. State
In some contexts, "ST" might represent State. This is particularly common in forms and documents related to state-level jurisdictions or government entities. However, without more information, this is not a definitive answer.
4. Sales Tax Forms
Many state and local government tax forms use "ST" as part of their form numbers. These forms often relate to sales and use tax returns. Examples include Wisconsin's Form ST-12, New York's Form ST-220-CA, and various others from Massachusetts, South Carolina, Virginia, and Georgia. [Source: Wisconsin Department of Revenue, New York State Department of Taxation and Finance, Mass.gov, dor.sc.gov, tax.virginia.gov, dor.georgia.gov]. These forms don't represent a full form of "ST" itself, but rather use "ST" as a prefix within a larger form identification number.
5. Saint
In names and places, "St" can abbreviate Saint. For example, "St. John's University" or "St. Louis". [Source: St. John's University]
It's crucial to consider the context in which "ST" appears to determine its correct full form.