American Dictionary
Define dictionary terms easily — search for "example", "dictionary", "language", or "word" in our powerful online English dictionary.
Define dictionary terms easily in our powerful online English dictionary.
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ready to take action to deal with a dangerous situation
The airplane crashed about 5 miles southeast of Carrollton, and local hospitals were placed on alert.
The troops at the local base were put on full alert.
All our forces are on full alert.
