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sybo

British  
/ ˈsəɪbɪ, ˈsaɪ-, -bo /

noun

  1. a spring onion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of sybo

C16: from cibol, from French ciboule, from Latin cepulla onion bed, from cepa onion