(verb) fortify by furnishing with battlements for defense. Synonyms: embattle. Example: "An embattled castle."
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Verb Definition 1
(verb) prepare for battle or conflict. Synonyms: embattle.
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Verb Definition 2
(adj) prepared for battle. Example: "An embattled city."
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Adjective Definition 1
(adj) having or resembling repeated square indentations like those in a battlement. Synonyms: battlemented, castled, castellated. Example: "A crenelated molding."