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oilskin a cloth treated with oil to make it waterproof. [2 definitions]
oil slick a film of oil floating on water.
oilstone a smooth, fine-grained, oiled whetstone, used for fine sharpening.
oil well a well from which petroleum is drawn or pumped.
oily of, concerning, or like oil. [3 definitions]
oink a sound representing the grunt of a pig. [2 definitions]
ointment any of various usu. semisolid preparations made to be rubbed into the skin for medicinal, cosmetic, or moistening purposes.
OJ (informal) abbreviation of "orange juice."
Ojibwa a member of a North American Indian tribe living in the United States and Canada around Lake Superior. [3 definitions]
OK1 (informal) acceptable; all right; satisfactory. [5 definitions]
OK2 abbreviation of "Oklahoma," a southwestern U.S. state north and east of Texas.
okapi a four-legged African animal, closely related to the giraffe but having a short neck.
okay a variant of OK.
Okie (often offensive) a migrant farm worker, esp. from Oklahoma.
Oklahoma a southwestern U.S. state north and east of Texas. (abbr.: OK)
Oklahoma City the capital of Oklahoma.
okra a green, ribbed, cylindrical vegetable that becomes gummy when cooked and is often used in soups and gumbos. [2 definitions]
-ol1 an alcohol, phenol, or other chemical compound containing hydroxyl.
-ol2 variant of -ole.
old having lived for a long time; not young. [11 definitions]
old age the final stage of life, considered in humans to begin at about age sixty-five, characterized by a decline in health and vigor.