sinclair > define

noun

• United States writer whose novels argued for social reform (1878-1968.
  • synonyms: Upton Sinclair, Upton Beall Sinclair
• English electrical engineer who founded a company that introduced many innovative products (born in 1940. ).
  • synonyms: Clive Sinclair, Sir Clive Marles Sinclair

• French: A Clear Sign
• French, English: St. Clair
• Scottish: From Saint Clair sur Elle
• English: From a surname which was derived from a Norman French place name meaning "saint Claire"