booster vs Whig

booster and Whig both are nouns.

Word	Noun	Adjective	Verb	Adverb
booster	Yes	No	No	No
Whig	Yes	No	No	No

As nouns, Whig is a hyponym of booster; that is, Whig is a word with a more specific, narrower meaning than booster:

booster (noun)	Whig (noun)
an additional dose that makes sure the first dose was effective	a member of the political party that urged social reform in 18th and 19th century England; was the opposition party to the Tories
the first stage of a multistage rocket	a supporter of the American Revolution
an amplifier for restoring the strength of a transmitted signal	a member of the Whig Party that existed in the United States before the American Civil War
a thief who steals goods that are in a store
someone who is an active supporter and advocate
a person who backs a politician or a team etc.