5-letter words that end in o
- reffo — an immigrant, especially one who has been in Australia only a short time.
- repro — Informal. reproduction (def 3).
- resto — a restored antique, vintage car, etc
- retro — retroactive: retro pay.
- rhino — a rhinoceros.
- ro-ro — roll-on/roll-off
- rodeo — a public exhibition of cowboy skills, as bronco riding and calf roping.
- rollo — Also called Rolf, Roy, Hrolf, Rolf the Ganger. a.d. c860–931? Norse chieftain: 1st duke of Normandy 911?.
- romeo — the romantic lover of Juliet in Shakespeare's Romeo and Juliet.
- ronco — any grunt of the genus Haemulon, especially H. parrai, the sailor's-choice, of West Indian waters.
- rondo — a work or movement, often the last movement of a sonata, having one principal subject that is stated at least three times in the same key and to which return is made after the introduction of each subordinate theme.
- roneo — to duplicate (a document) from a stencil
- rovno — a city in NW Ukraine, NE of Lvov.
- rumbo — a rum-based cocktail
- rumpo — sexual intercourse
- sacco — Nicola [nee-kaw-lah] /niˈkɔ lɑ/ (Show IPA), 1891–1927, Italian anarchist, in the U.S. after 1908: together with Bartolomeo Vanzetti, found guilty of robbery and murder 1921; executed 1927.
- saddo — If you say that someone is a saddo, you do not have any respect for them and think their behaviour or ideas are ridiculous.
- salto — a city in NW Uruguay, on the Uruguay River.
- salvo — a simultaneous or successive discharge of artillery, bombs, etc.
- sambo — a term used to refer to a black person, especially a male.
- sampo — a magical object or substance that was stolen by Ilmarinen, Vainamoinen, and Lemminkainen from Louhi because of its powers.
- sango — a Niger-Congo language of the Adamawa-Eastern branch, used as a lingua franca in the Central African Republic.
- santo — a carved figure of a saint, usually of wood, as from Puerto Rico, Mexico, or the southwestern U.S.
- sargo — a silvery grunt, Anisotremus davidsonii, inhabiting waters off the coasts of California and Mexico, having blackish markings and yellowish fins.
- sarto — Andrea del [ahn-drey-uh del;; Italian ahn-dre-ah del] /ɑnˈdreɪ ə dɛl;; Italian ɑnˈdrɛ ɑ dɛl/ (Show IPA), Andrea del Sarto.
- sayao — Bidú [bee-doo;; Portuguese bih-doo] /ˈbi du;; Portuguese bɪˈdu/ (Show IPA), (Balduina de Oliveira Sayão) 1902–1999, Brazilian soprano.
- schmo — a foolish, boring, or stupid person; a jerk.
- scudo — any of various gold or silver coins, of various Italian states, issued from the late 16th through the early 19th centuries.
- seato — an organization formed in Manila (1954), comprising Australia, Great Britain, France, New Zealand, Pakistan, the Philippines, Thailand, and the United States, for collective defense against aggression in southeastern Asia and the southwestern Pacific: abolished in 1977.
- secco — fresco secco.
- segno — a sign.
- seppo — an American
- servo — acting as part of a servomechanism: servo amplifier.
- setto — a usually brief, sharp fight or argument.
- shaco — An early system on the IBM 701.
- shako — a military cap in the form of a cylinder or truncated cone, with a visor and a plume or pompon.
- shamo — a desert in E Asia, mostly in Mongolia. About 500,000 sq. mi. (1,295,000 sq. km).
- sicko — sickie (def 1).
- siggo — significant other (def 2).
- silko — Leslie Marmon [mahr-muh n] /ˈmɑr mən/ (Show IPA), born 1948, U.S. poet, novelist, and short-story writer.
- sixmo — a book size resulting from folding a sheet of paper into six leaves or twelve pages, each one sixth the size of the sheet
- skimo — an Inuit
- sligo — a county in Connaught province, in the NW Republic of Ireland. 694 sq. mi. (1795 sq. km).
- smoko — a rest period during work.
- so-so — Also, soso. indifferent; neither very good nor very bad.
- socko — extremely impressive or successful: a socko performance.
- sohio — An early system on the IBM 705.
- soldo — a former copper coin of Italy, the twentieth part of a lira, equal to five centesimi.
- sordo — muted
- sorgo — any of several varieties of sorghum grown chiefly for the sweet juice yielded by the stems, used in making sugar and syrup and also for fodder.