oaf |əʊf| — an awkward stupid person

oafish |ˈəʊfɪʃ| — ill-mannered and coarse and contemptible in behavior or appearance

oak |əʊk| — the hard durable wood of any oak; used especially for furniture and flooring

oak-apple |ˈəʊk æpəl| — Oak gall.

oak-tree |triː| — A tree of the genus Quercus, bearing acorns and having lobed leaves.

oaken |ˈəʊkən| — consisting of or made of wood of the oak tree

oakley |ˈɒklɪ| — United States sharpshooter who was featured in Buffalo Bill's Wild West Show (1860-1926)

oakling |ˈəʊklɪŋ| — A young oak tree.

oakum |ˈəʊkəm| — loose hemp or jute fiber obtained by unravelling old ropes; when impregnated with tar it was used to caulk seams and pack joints in wooden ships

oakwood |ˈɒˌkwʊd| — A wood populated with oak trees.

oaky |ˈəʊkɪ| — Describing the taste of wine that has been aged in oak and acquired tannins from the wood.

oar |ɔːr| — an implement used to propel or steer a boat

oarage |ˈɔːrɪdʒ| — (archaic) The act of using oars; rowing.

oared |ˈɔːrd| — Having oars.

oarlock |ˈɔːrlɑːk| — a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing

oarsman |ˈɔːrzmən| — someone who rows a boat

oarsmanship |ˈɔːrzmənʃɪp| — skill as an oarsman

oases |əʊˈeɪsiːz| — plural form of oasis

oasis |əʊˈeɪsɪs| — a fertile tract in a desert (where the water table approaches the surface)

oast |əʊst| — a kiln for drying hops

oast-house |ˈəʊst haʊs| — (UK) a building containing oasts, used in conjunction with hop harvesting.

oat |əʊt| — annual grass of Europe and North Africa; grains used as food and fodder (referred to primarily in the plural: `oats')

oatcake |ˈəʊtkeɪk| — thin flat unleavened cake of baked oatmeal

oaten |ˈəʊtn| — of or related to or derived from oats

oath |əʊθ| — profane or obscene expression usually of surprise or anger

oatmeal |ˈəʊtmiːl| — porridge made of rolled oats

oats |əʊts| — plural form of oat