4-Letter Words Starting O & Ending S

• an adult castrated bull of the genus Bos; especially Bos taurus

• any of various wild bovines especially of the genera Bos or closely related Bibos

• To kill.

• To switch off.

• German physicist who formulated Ohm's law (1787-1854)

• a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere

• the hard durable wood of any oak; used especially for furniture and flooring

• a deciduous tree of the genus Quercus; has acorns and lobed leaves

• a Turkish unit of weight equal to about 2.75 pounds

• a Turkish liquid unit equal to 1.3 pints

• South American wood sorrel cultivated for its edible tubers

• A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus.

• The wood of the oak.

• A rich brown colour, like that of oak wood.

• Any tree of the genus Quercus, in family Fagaceae.

• Any tree of other genera and species of trees resembling typical oaks of genus Quercus in some ways.

• The outer (lockable) door of a set of rooms in a college or similar institution. (Often in the phrase "to sport one's oak").

• The flavor of oak.

• A former Turkish, Egyptian, Hungarian, and Romanian unit of weight, usually of a little more than a kilogram.

• A unit of volume in Egypt (and formerly Turkey) corresponding to about 1.2 litres.

• Man; guy; bloke.

• an awkward stupid person

• express admiration and pleasure by uttering `ooh' or `aah'

• be obliged to pay or repay

• be indebted to, in an abstract or intellectual sense

• be in debt