ocean
/ˈəuʃn; `oʃən/ n
1 [U] mass of salt water that covers most of the earth's surface 洋; 海洋; 大海
[attrib 作定语]
an ocean voyage 海洋航行 * the ocean waves 海浪.
2 Ocean [C] one of the main areas into which this is divided （地球上划分出的）洋
the Atlantic/Pacific/Indian/Arctic/Antarctic Ocean 大西洋[太平洋/印度洋/北冰洋/南冰洋].
3 (idm 习语) a drop in the bucket/ocean => drop1. oceans of sth (infml 口) very many or much; lots of sth 很多; 大量
oceans of food and drink 大量的食物和饮料
Don't worry we've got oceans of time. 别担心--我们有的是时间.