Oxford Dictionary English

    coastguard

    noun
    noun
    BrE BrE//ˈkəʊstɡɑːd//
    ; NAmE NAmE//ˈkoʊstɡɑːrd//
    People in sea travel
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  1. 1(also the coastguard) [singular] an official organization (in the US a branch of the armed forces) whose job is to watch the sea near a coast in order to help ships and people in trouble, and to stop people from breaking the law The coastguard was alerted. They radioed Dover Coastguard. a coastguard station See related entries: People in sea travel
  2. 2[countable] (especially British English) (usually US English coastguardsman
    BrE BrE//ˈkəʊstɡɑːdzmən//
    ; NAmE NAmE//ˈkoʊstɡɑːrdzmən//
     (pl. coastguardsmen
    BrE BrE//ˈkəʊstɡɑːdzmən//
    ; NAmE NAmE//ˈkoʊstɡɑːrdzmən//
    )    )     a member of this organization See related entries: People in sea travel
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