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Merriam-Webster's Collegiate Dictionary bo·nan·za \\bə-ˈnan-zə\\ noun ETYMOLOGY Spanish, literally, calm sea, from Medieval Latin bonacia, alteration of Latin malacia, from Greek malakia, literally, softness, from malakos soft
DATE 1829
1. an exceptionally large and rich mineral deposit (as of an ore, precious metal, or petroleum)2. a. something that is very valuable, profitable, or rewarding a box-office bonanza b. a very large amount a bonanza of sympathy c. extravaganza channels planning all-day viewing bonanzas — William Borders
bonanza
1844, Amer.Eng., from Sp. bonanza "a rich lode," originally "fair weather at sea, prosperity," from V.L. *bonacia, from L. bonus "good" (see bene-).
Oxford Advanced Learner's Dictionary-牛津双解-OALD7 bonanza
bon·anza / bE5nAnzE / noun[sing.]
1. a situation in which people can make a lot of money or be very successful
发财(或成功)的机遇:
a cash bonanza for investors
投资者的赚钱机会
a bonanza year for the computer industry
计算机业兴旺发达的一年
2. a situation where there is a large amount of sth pleasant
兴盛；繁荣:
the usual bonanza of sport in the summer
夏季体育运动的一贯热潮
Webster's Third New International Dictionary, Unabridged bo·nan·za\bəˈnanzə, bōˈ-\ noun( -s) Usage: often attributiveEtymology: Spanish, literally, calm, fair weather, prosperity, rich mine, from Medieval Latin bonacia, alteration (influenced by Latin bonus good) of Latin malacia calm at sea, from Greek malakia, literally, softness — more at bounty , malacia 1. a. : an exceptionally large and rich ore shoot or pocket in veins carrying gold and silver b. : a mine having such an ore shoot or pocket; also : the yield of such a mine < a bonanza worth millions >2. a. : something that yields an often unexpectedly large profit < a bonanza enterprise > < put the full resources of his studio behind the picture … and achieved a box-office bonanza — Al Hine > b. : an extremely large amount < the bonanza paid to foreign countries to help them keep out of debt > < a bonanza of Socialist sympathy — Time > c. : something excessively rich, lush, or rewarding < the bonanza farms of the middle west — Lewis Mumford > < a bonanza era >• - in bonanza
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