A small ornamental case for a picture or keepsake, usually worn as a pendant.(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 "locket" in a sentence
"The locket is just the right size so that when I put it in the palm of my hand and close my fingers around it, it fills my hand."
"They both had necklaces and bracelets, ear-rings and brooches; but Polly had no ornament, except the plain locket on a bit of blue velvet."
"Inside the locket is a picture of Anne and Joseph, who, while having a panic attack, is unable to spell his own name."