sheet anchor

noun

Definition of sheet anchor 

1 : a large strong anchor formerly carried in the waist of a ship and used as a spare in an emergency

2 : something that constitutes a main support or dependence especially in danger

First Known Use of sheet anchor

1626, in the meaning defined at sense 1

History and Etymology for sheet anchor

alteration of earlier shoot anchor, from Middle English shute anker

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Dictionary Entries near sheet anchor

sheesh

sheet

sheetage

sheet anchor

sheet bend

sheet-block

sheet cable

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Time Traveler for sheet anchor

The first known use of sheet anchor was in 1626

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