sst

1. alternativeAlternative form of st (“hush; silence”).

   "Sst!" hissed Mel Daggett, who was the last to enter. "Don't you know the door's open? Don't talk so loud, you fellows."

   1907, Burt L. Standish, Dick Merriwell's Backers

plural SSTs

1. abbreviationcountableinitialismuncountableaeronauticsInitialism of supersonic transport.

   Here he found a selection of French crèmes fraîches at prices implying transport via SST.

   2001, Jonathan Franzen, The Corrections

2. abbreviationcountableuncountablebiochemistryAbbreviation of somatostatin.
3. abbreviationcountableinitialismuncountableclimatologyInitialism of sea surface temperature.
4. abbreviationcountableinitialismuncountableInitialism of socioemotional selectivity theory.
5. abbreviationcountableinitialismuncountablepsychotherapyInitialism of single-session therapy.

   1 more example

   In and around 2016, a controversy arose when the CRPO began refusing grandparenting applications on the basis that an applicant's SST hours did not count towards fulfilling the grandparenting requirements. Specifically, the CRPO was taking the position that the 800 DCC hours requirement for grandparenting could not be satisfied with SST.

   2019 December, Karen Young, Joseph Jebreen, “Recognizing Single-Session Therapy as Psychotherapy”, in Journal of Systemic Therapies, volume 38, number 4, Guilford Publications, →DOI, →ISSN, →OCLC, page 34

6. MalaysiaabbreviationcountableinitialismuncountableInitialism of sales and service tax.

1. abbreviationinitialismcomputingInitialism of Shiva Smart Tunneling.
2. USabbreviationinitialismspace; US space program; space; US space programInitialism of Spitzer Space Telescope.