WordNet sense 1 (a period of indeterminate length (usually short) marked by some action or condition):

piece, spell, while

WordNet sense 2 (a small area of ground covered by specific vegetation):

plot, plot of ground

WordNet sense 3 (a small contrasting part of something):

dapple, fleck, speckle, spot, maculation

WordNet sense 4 (a connection intended to be used for a limited time):

temporary hookup

WordNet sense 5 (sewing that repairs a worn or torn hole (especially in a garment)):

darn, mend

WordNet sense 6 (a protective cloth covering for an injured eye):

eyepatch

WordNet sense 7 (a piece of soft material that covers and protects an injured part of the body):

bandage

WordNet sense 8 (mend by putting a patch on):

patch up