What is the meaning of the word "spot"?

Definitions:

a business establishment for entertainment noun
- night spot
a playing card with a specified number of pips on it to indicate its value noun
- an eightspot
a section of an entertainment that is assigned to a specific performer or performance noun
- They changed my spot on the program!
a small contrasting part of something noun
- a bald spot
a small piece or quantity of something noun
- a spot of tea
become spotted verb
- This dress spots quickly
make a spot or mark onto verb
- The wine spotted the tablecloth
mark with a spot or spots so as to allow easy recognition verb
- spot the areas that one should clearly identify