See attached link.
A synonym for the word doctrine is belief or principle.
A synonym that has a meaning similar to the word believes is the word trust. An antonym to the word believes that has an opposite meaning of it is the word doubt.
The closest synonym for the word "believed" is "trusted" or "accepted."
The closest synonym for the word controversy is "dispute" or "debate."
Fate is a synonym for destiny.
Equality, Liberty, suffrage.
A synonym for liberty is freedom
liberty
Freedom
Synonyms for the word sovereignty: independence, freedom, liberty, self-determination, self-government, self-rule
A possible synonym could be "liberty-loving nation."
synonymize
word for word
Posterity is a word for future generations, children. Used in the preamble of the Constitution of the USA: "And secure the blessings of liberty to ourselves and our posterity."
liberty
The antonym of the word 'synonym' is 'antonym'.
"Alternate word" is a noun-phrase that is kind of a synonym for the word "synonym. There is no one exact word that means the same as synonym.