(n)spot, speckle, dapple, patch, fleck, maculationa small contrasting part of something“a bald spot”, “a leopard's spots”, “a patch of clouds”, “patches of thin ice”, “a fleck of red”
(n)while, piece, spell, patcha period of indeterminate length (usually short) marked by some action or condition“he was here for a little while”, “I need to rest for a piece”, “a spell of good weather”, “a patch of bad weather”