Unresolved Sexual Tension.
Abreviation used in fanfiction, mainly for X-Files stories, to describe the status in a relationship
I´ve read the best UST between Mulder and Scully, but they finally got together in the 4 chapter
by Lara October 16, 2003
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Unresolved sexual tension

An acronym commonly used in fandoms to describe sexually charged relationships between characters in which impulses are not acted upon.
The UST between Dean and Castiel is pretty damn blatant. Just look at the eye-sex!
by Person Folk February 6, 2011
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UTAU's project files are saved under the ".ust" (Utau Sequence Text) extension. These files can be freely distributed, allowing different UTAU to sing the same piece.
by InersDraco July 28, 2017
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Stands for unresolved sexual tension where there is lots of sexy heat between two people who won't act on it.
Faye- Were those two just flirting?
Mike- Oh yeah there is totes UST between them
by LovePeacock March 20, 2012
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"you" in espanol, for when you're talking to someone formally
Hola! ¿Como está?"
Muy bien! ¿Y usted?"
"¡Muy bien, gracias!"
by MindsEyeTHPS April 19, 2018
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1) Acronym for University of Santo Tomas
2) The Pontifical and Royal University of the Philippines
3) The oldest existing university in Asia
4) The largest Catholic university in the world

The University of Santo Tomas, the Pontifical and Catholic University of the Philippines, a Dominican institution of higher learning, under the inspiration and patronage of St. Thomas Aquinas, commits itself to the pursuit of truth and to the preservation, advancement and transmission of knowledge in the arts and sciences, both sacred and civil, through the use of reason illumined by faith.

The university affirms its role in the formation of men and women to become competent and compassionate professionals committed to the service of the Church, the nation and the global community.


By the year 2011, the University of Santo Tomas envisions itself as a center of excellence in various programs of teaching, an acknowledged expert in key areas of research in the pure and applied sciences, a leader in community/extension services, and as the Center of Contextualized Theology in Asia. It also envisions for itself an extended physical presence beyond Manila, and a more functional networking mechanism with other universities/institutions.

6) A University where students are bestowed with good behavior and proper conduct
Lady: Wow! You are a one nice kid, I bet you're studying at UST
by WhatTheHellAreYouLookingAt!! January 28, 2009
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