Ответ:

Mother > Federation > Go > Green

The word "mother" has the widest polysemy, as it can refer to a female parent, as well as to a term of address for a respected older woman or to describe something that is the source or origin of something else.

"Federation" has a fairly broad range of meanings, including a political union of states, a sports organization, and a type of starship in science fiction.

"Go" has a few different meanings, such as to move or travel from one place to another, or to function or work properly.

"Green" has the narrowest polysemy, as its primary meaning is a color on the spectrum between blue and yellow, although it can also refer to environmentalism or immaturity.