English

Definition of sheet anchor noun from the Oxford Advanced Learner's Dictionary

 

sheet anchor

 noun
noun
BrE BrE//ˈʃiːt æŋkə(r)//
 
; NAmE NAmE//ˈʃiːt æŋkər//
 
 
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a person or thing that you can depend on in a difficult situation Word Originlate 15th cent.: perhaps related to obsolete shot, denoting two cables spliced together, later influenced by sheet sense 6.
See the Oxford Advanced American Dictionary entry: sheet anchor