Dictionary

STP en · ADJ

(abbreviation, alt-of, initialism) Initialism of subject to planning.
alt of subject to planning
- This building would suit alternative uses STP.

(abbreviation, alt-of, countable, initialism, uncountable) Initialism of sewage treatment plant.
alt of sewage treatment plant
(abbreviation, alt-of, countable, initialism, uncountable) Initialism of standard temperature and pressure.
alt of standard temperature and pressure
(abbreviation, alt-of, countable, initialism, uncountable) Initialism of spanning tree protocol.
alt of spanning tree protocol
(abbreviation, alt-of, countable, initialism, uncountable) Initialism of shielded twisted pair.
alt of shielded twisted pair
(abbreviation, alt-of, countable, initialism, qualifier:especially LGBTQ, uncountable) Initialism of stand-to-pee.
alt of stand-to-pee
(slang, uncountable) A hallucinogen (2,5-dimethoxy-4-methylamphetamine), chemically related to amphetamine but with LSD-like effects.
- “Don,” she cries, breathless. “We got some STP today.” At this time STP is a pretty big deal, remember; nobody yet knew what it was and it was relatively, although just relatively, hard to come by. 1968, Joan Didion, “Slouching Towards Bethlehem”, in Slouching Towards Bethlehem:
- I could not correctly estimate what I was experiencing, and the strychnine in the STP began cramping my belly. 2021, Rickie Lee Jones, Last Chance Texaco, Grove Press, published 2022, page 128:

Spelling	Features	Labels	Source
STPs	Number=Plur		lexicographic