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What is a rapier?
A rapier is a type of sword with a very long and thin blade, they usually have some sort of hand protection and a fancy handle. Pirates sometimes use these swords, And Raphael in the namco game Soul...
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What is usage?
custom (an accepted or habitual practice)
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Usage of on?
On is a preposition, indicating position (sometimes metaphorically).
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Usage of which and what?
'Which' is used when talking about one of a group of things known or implied by the speaker and listener. 'What' can refer to more unknown things, e.g. 1 Which is best, coke or lemonade? 2 What is...
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What is rapier sword?
it's a sword that was used during renaissance europe, it was mostly carried by gentlemen