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Alternative forms 
- A means of defense formed by felled trees, or sometimes by bent trees, the ends of whose branches are sharpened and directed outwards, or against the enemy, and more recently fortified with barbed wire. [Mid 19th century.]
means of defense
- ^ 2003 , Brown, Lesley editor, The Shorter Oxford English Dictionary, edition 5th, Oxford, UK: Oxford University Press, ISBN 978-0-19-860575-7, page 2:
- Second-person singular present subjunctive form of abatre.
- past of abatar