Chiefly British A sixpenny coin formerly used in Britain; a sixpence.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tanner" in a sentence
"Well, believe it or not, new research suggests that some people are tanorexic, addicted to what they call a tanner's high."
"Or maybe that self tanner is loaded with lead and mercury."
"The name tanner for a sixpence coin was first used at the beginning of the 19th century."