Definitions:
a piece of cloth or other material used to mend or strengthen a torn or weak point

a part of something marked out from the rest by a particular characteristic

a small piece of ground, especially one used for gardening

a particular period of time

a temporary electrical or telephone connection.

a small piece of code inserted into a program to improve its functioning or to correct a fault

mend or strengthen (fabric or clothing) with a patch

treat someone's injuries or repair the damage to something in an improvised way

connect by a temporary electrical, radio, or telephonic connection

improve or correct (a routine or program) by inserting a patch