Dictionary.com
definitions

Niarchos

[nee-ahr-kohs; Greek nee-ahr-khaws]
noun
  1. Stav·ros Spy·ros [stahv-raws spee-raws] /ˈstɑv rɔs ˈspi rɔs/, 1909–1996, Greek businessman and shipowner.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for niarchos

Niarchos

noun
  1. Stavros Spyro (ˈstævrɒs ˈspɪərəʊ). 1909–96, Greek shipowner. He pioneered the use of supertankers in the 1950s
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