Synonyms are found in a dictionary or a thesaurus.
A thesaurus is a reference book that provides synonyms for words. Two popular thesauruses are "Roget's Thesaurus" and "Merriam-Webster's Collegiate Thesaurus."
A thesaurus is used to find and insert a synonym for an overused word.
Fuuuck it
If you have the meaning or definition then you will have a synonym of the word. Look up that synonym in a thesaurus.
Deep is the synonym used in Scripture for the sea.
The word "sage" itself can be used as a synonym for sagebrush.
If you are trying to find a synonym of through, then I suggets "into" would be a good synonym.
Synonym for the word clench would be clamp. There are a few other words that can be used as a synonym.
Investigation, probe, examination.
receive, get, find, obtain, incur
A thesaurus.
a dictionaryOr, more accurately, an etymology dictionary.
The word milligram does not have a synonym. Milligram is a unit that is used to measure the mass of an object.