List of acronyms: U

From Wikipedia, the free encyclopedia

This list contains acronyms, initialisms, and pseudo-blends  that begin with the letter U.

For the purposes of this list:

  • acronym = an abbreviation pronounced as if it were a word, e.g., SARS = severe acute respiratory syndrome, pronounced to rhyme with cars
  • initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc, pronounced cee dee
  • pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).
(a) = acronym, e.g.: SARS – (a) severe acute respiratory syndrome
(i) = initialism, e.g.: CD – (i) compact disc
(p) = pseudo-blend, e.g.: UNIFEM – (p) United Nations Development Fund for Women
(s) = symbol (none of the above, representing and pronounced as something else; for example: MHz – megahertz)

Some terms are spoken as either acronym or initialism, e.g., VoIP, pronounced both as voyp and V-O-I-P.

(Main list of acronyms)

UA[edit]

UB[edit]

UC[edit]

UD[edit]

UE[edit]

UF[edit]

UG[edit]

UH[edit]

UI[edit]

UJ[edit]

UK[edit]

UL[edit]

  • UL – (i) Underwriters Laboratories
  • ULEB – (a) Union des ligues européens de basket-ball, French for "Union of European Basketball Leagues"
  • ULF – (i) Ultra Low Frequency
  • ULOF – unprotected loss of flow (nuclear accident)
  • ULOHS – unprotected loss of heat sink (nuclear accident)
  • UTOP – unprotected transient overpower (nuclear accident)

UM[edit]

UN[edit]

UP[edit]

UR[edit]

US[edit]

UT[edit]

UU[edit]

UV[edit]

UW[edit]

UX[edit]

UY[edit]

UZ[edit]