3-letter words that end in o
- ewo — Educational Welfare Officer
- fao — For the Attention Of. Used on an address or label, specifies an individual to whom the document should be delivered, usually put on when the address is of an organisation.
- fco — Foreign and Commonwealth Office
- flo — a female given name, form of Florence.
- foo — (computing) A metasyntactic variable used to represent an unspecified entity. If part of a series of such entities, it is often the first in the series, and followed immediately by bar.
- fpo — field post office
- fro — Obsolete. from; back.
- fxo — Foreign eXchange Office
- gao — a city in E Mali.
- geo — (Shetland, Orkney, Caithness) an inlet, gully or cleft in the face of a cliff.
- gmo — genetically modified organism: an organism or microorganism whose genetic material has been altered by means of genetic engineering.
- goo — a thick or sticky substance: Wash that goo off your hands.
- gpo — (in the U.S. postal system) the main post office of a city, county, etc., that also has branch post offices. Abbreviation: G.P.O., GPO.
- gro — (US, slang) Disgusting, unpleasant; gross.
- hao — an aluminum coin and monetary unit of Vietnam, the tenth part of a dong.
- hmo — health maintenance organization
- hoo — (South Lancashire, Yorkshire and Derbyshire) she.
- i/o — input/output
- i2o — Intelligent Input/Output
- ibo — a member of an indigenous black people of southeastern Nigeria, renowned as traders and for their art.
- ido — a revised and simplified form of Esperanto, introduced in 1907.
- igo — a Japanese game for two persons, played on a board having 361 intersections on which black and white stones or counters are alternately placed, the object being to block off and capture the opponent's stones and control the larger part of the board.
- ijo — a member of an indigenous people of the Niger delta in southern Nigeria.
- ilo — International Labour Organisation
- imo — IMHO
- ino — a sea goddess who rescued Odysseus from drowning by giving him a magic veil.
- ipo — independent publicly owned company
- iro — (formerly, in Britain) Inland Revenue Office
- iso — isolated camera.
- ito — Prince Hirobumi [hee-raw-boo-mee] /ˈhi rɔˈbu mi/ (Show IPA), 1841–1909, Japanese statesman.
- iwo — a city in SW Nigeria.
- ixo — Telocator Alphanumeric Protocol
- koo — (Vi Kyuin) Wellington [wee gyin] /ˈwi ˈgyɪn/ (Show IPA), (Ku Wei-chün; Gu Weijun) 1887–1985, Chinese diplomat and statesman.
- l&o — Logic and Objects. A front end for IC Prolog.
- lao — a member of a people of Laos and northern Thailand.
- lbo — finance: leveraged buyout
- leo — (Giovanni Vincenzo Pecci) 1810–1903, Italian ecclesiastic: pope 1878–1903.
- lmo — Labour Market Opinion
- loo — a card game in which forfeits are paid into a pool.
- lpo — London Philharmonic Orchestra
- lso — London Symphony Orchestra
- luo — a member of a people living mainly in southwest Kenya.
- mao — The ma'oma'o, Gymnomyza samoensis, a large passerine bird native to Samoa.
- mbo — law: management buyout
- meo — Miao (def 1).
- mho — See under siemens.
- mmo — Massively Multiplayer Online Game
- moo — MUD Object Oriented
- mvo — Member of the Royal Victorian Order
- nao — (Internet slang, humorous) Alternative form of now.