1.oriented a．導向的(intellectually, emotionally, or functionally directed)

例：issue-oriented以議題為導向的

派生詞：disoriented(a．迷失方向的)

2.originality n．創意，獨創性(the quality of being original)

詞根記憶：來自original(a．新穎的，有創意的)

例：Originality is not the only valuable attribute that a work of art can possess.

3.originate v.出現(to appear);開始(to initiate, begin)

詞根記憶：來自origin(n.起源，產生)

例：United States automakers will originate net production processes before Japanese automakers do.

派生詞：originator(n.創始者)：originality(n.創造性)

4.originator n，發起人(one that creates new things

詞根記憶：來自originate(v.起源)

例：The lack of complete historical records from the mid-to-late 1800's has made it difficult to trace some inventions to their Black originators.

5.ornamentation n.裝飾物；裝飾(decoration)

例：The bowers of one species of bowerbird(園丁鳥)lack the towers and ornamentation.

6.orthodox a．正統的，通常的(traditional and usual)

詞根記憶：ortho(正)+dox（觀點）--正統觀點的--正統的

例：This orthodox view of the universe is now being challenged by those astronomers.

同根詞：heterodox(a．異端邪說的)；paradox(n．自相矛盾的話)

7.osmotic a.滲透的，滲透性的(of, relating to, caused by, or having the properties of osmosis)

例：osmotic pressure滲透壓（指溶液中的溶質促使水分子通過半透膜從一側溶液擴散到另一側溶液的力量）

8.ostentation n.夸示，炫耀(excessive display)

詞根記憶：ostent(顯現)+ation--顯現--炫耀

例：Structural ostentation and luxury were the order of the day.

9.oust v．驅逐，剝奪(to remove from or dispossess of property or position by legal action, by force, or by the compulsion of necessity)；取代(to take the place of)

例：When evidence of financial wrongdoing by an elected official surfaces, it is the electorate who must decide whether the evidence warrants censuring him or ousting him from office.

派生詞：ouster(n．驅逐；罷黜)