from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A tropical cyclone occurring in the western Pacific or Indian oceans.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A weather phenomenon in the Eastern Pacific that is precisely equivalent to a hurricane, which results in wind speeds of 64 knots (118km/h) or above. Equivalent to a cyclone in the Indian Ocean and Indonesia/Australia.
from the GNU version of the Collaborative International Dictionary of English
- n. A violent whirlwind; specifically, a violent whirlwind occurring in the Chinese seas.
from The Century Dictionary and Cyclopedia
- n. A violent hurricane occurring in the China seas and their environs, principally during the months of July, August, September, and October
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a tropical cyclone occurring in the western Pacific or Indian oceans
Greek tuphōn, whirlwind, and Arabic ṭūfān, deluge (from Greek tuphōn), and Chinese (Cantonese) taaîfung (equivalent to Chinese (Mandarin) tái, great + Chinese (Mandarin) fēng, wind).(American Heritage® Dictionary of the English Language, Fourth Edition)
Probably ultimately of Sinitic origin, Mandarin 大风 (dàfēng, "big wind"), Cantonese 大風 (daai6 fung1, "big wind"), via Arabic طوفان (ṭūfān), Hindi तूफ़ान (tūfān), and Persian توفان (tufân). Given the location of typhoons as a Pacific Ocean phenomenon, it is more likely it began east and moved west. Ancient Greek Τυφῶν (Tuphōn, "Typhon, father of the winds") is unrelated but has secondarily contaminated the word. (Wiktionary)