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Pronunciation varies by accent · noun
(historical) A small Roman detached fort or fortlet used as a watch tower or signal station..
Use castellum when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Castellum means (historical) A small Roman detached fort or fortlet used as a watch tower or signal station..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use castellum where its definition matches the intended context.
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