The difference between Rapid and Speedy
When used as adjectives, rapid means very swift or quick, whereas speedy means rapid.
Rapid is also noun with the meaning: a rough section of a river or stream which is difficult to navigate due to the swift and turbulent motion of the water.
Rapid is also adverb with the meaning: rapidly.
Speedy is also verb with the meaning: to process in a faster than normal, accelerated way.
check bellow for the other definitions of Rapid and Speedy
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Rapid as an adjective:
Very swift or quick.
Examples:
"a rapid stream; rapid growth; rapid improvement"
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Rapid as an adjective:
Steep, changing altitude quickly. (of a slope)
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Rapid as an adjective:
Needing only a brief exposure time. (of a lens, plate, film, etc.)
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Rapid as an adjective (England, dialectal):
Violent, severe.
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Rapid as an adjective (obsolete, dialectal):
Happy.
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Rapid as an adverb (archaic or colloquial):
Rapidly.
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Rapid as a noun (often, in the plural):
a rough section of a river or stream which is difficult to navigate due to the swift and turbulent motion of the water.
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Rapid as a noun (dated):
A burst of rapid fire.
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Speedy as an adjective:
rapid; swift
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Speedy as a verb (transitive):
to process in a faster than normal, accelerated way
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Speedy as a verb (internet, slang, transitive, Wiktionary and WMF jargon):
to apply the speedy rule in an online community (often the deletion rule); speedy delete
Examples:
"The guy is *not* so obviously insignificant that speedying him is appropriate."