An abbreviation is a short form of a word or expression. An acronym is a word made up from the first letters of the name of something such as an organisation.
UAE: United Arab Emirates
UAR: United Arab Republic
U-boat: underseaboat (submarine)
UC: Urban Council; University College
UDA: Urban Development Authority
UDI: Unilateral Declaration of Independence
UFO: unidentified flying object
UK: United Kingdom
UN: United Nations
Undergrad: undergraduate
Uni: university
UNP: United National Party
UP: United Press
UPI: United Press International
UPU: Universal Postal Union
US: United States
USA: Unites States of America
USAID: United States Agency for International Development
Varsity: university
VAT: value-added tax
VC: Vice Chancellor
VCR: video cassette recorder
VD: venereal disease
V-Day: Victory Day
VDT: visual display terminal
Ven: Venerable
Vet: veterinary surgeon
VIP: very important person
Viz: videlicit (namely)
VOA: Voice of America
WB: World Bank
WHO: World Health Organisation
WIPO: World Intellectual Property Organization
WLM: Women’s Liberation Movement
WP: Western Province
WPC: Woman Police Constable
WPI: World Press Institute
WWI: World War One (1914-18)
WWII: World War Two (1939-45)
XL: extra large
YMBA: Young Men’s Buddhist Association
YMCA: Young Men’s Christian Association
YWCA: Young Women’s Christian Association
Footnote abbreviations
abr: abridged
app: appendix
ca or circa: about
cf: compare
esp: especially
et seq: and the following
f: and the following page
ff: and the following pages
ibid: in the same place
id or idem: by the same author
inf: below
loc cit: in the place cited
ms: manuscript
mss: manuscripts
NB: take note of
nd: no date
op cit: in the work cited
passim: throughout
pl: plate
pp: pages
pub: published
ser: series
sup: above
suppl: supplement
trans: translated or translation
vide: see
viz: namely
(Concluded)