A reminder of a person or situation in the past. For example, He really played a fine game for a fifty-year-old—shades of his high school triumphs, or They found themselves alone on the beach—shades of their childhood summers together. [Mid-1800s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.