submarine

Từ điển Oxford Advanced Learner 8th

sub·mar·ine [submarine submarines] noun, adjective BrE [ˌsʌbməˈriːn] NAmE [ˌsʌbməˈriːn] BrE [ˈsʌbməriːn] NAmE [ˈsʌbməriːn]
noun (also informal sub)
1. a ship that can travel underwater
•a nuclear submarine
•a submarine base
2. (also ˌsubmarine ˈsandwich, hero) (all NAmE)a long bread roll split open along its length and filled with various types of food

Example Bank:
•submarines carrying nuclear warheads
•the problem of submarines operating too close to fishing vessels

 
adjective only before noun (technical)
existing or located under the sea
•submarine plant life
•submarine cables
 
See also: ↑hero ▪ ↑sub

• Từ đồng nghĩa / Synonyms:
  undersea, pigboat, sub, U-boat