a boot
The bottom part of a cake is called the base.
Negative
I'm not positive, but if it is a rubber typ ring, it is probably a gasket.
there are different terminologies in different countries. in most Asian countries they are called Bushes....and in most western countries they are just called Rubber Supports........!
The small piece of cartilage at the base of the sternum is called the xiphoid process
Guibo or Flex-disc
There is a rubber piece missing near your brake pedal. My friend had the same problem and his mechanic just put a small rubber piece there. Not exactly sure what it's called..
That would be the "sash channel".
A piece of tape on a rubber balloon acts as a reinforcement so the rubber does not rip when poked by a needle in the tape.
A rubber match (or rubber game) is a match where the winner of that match wins the series. In a three game series tied at one game a piece, the third match is the rubber match. The third match is not called a rubber match if one team already won the first two games and is going for the sweep.
compressed spring
this is called the door sill seal or door sill rubber