flash

noun [C] (MILITARY SIGN)

/flæʃ/ UK

Definition

› a small object or piece of material worn on a military uniform as a sign of rank, or (on clothing) a strip or mark of colour different from the main colourGeneral ranks in the armed forcesDecorations added to clothes

(Definition of flash noun (MILITARY SIGN) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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to get rid of something or someone that is not wanted or needed

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