One can find many synonyms for the word undulate online. Thesaurus online is a good place to find synonyms as is The Free Dictionary and Synonyms-For.
Waves undulate.
synonymize
"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.
The word "mobile" means capable of moving or being moved easily from one place to another.
"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.
A synonym for the word escape would be flee.
One synonym for choice is option.
There are many synonyms of the word 'backlash'. One such synonym is recoil and another is rebound. If one looks in a thesaurus one can find more synonyms for the word.
One may find synonyms for the word "fitte" by using the thesaurus feature available in Microsoft Word. Another place one might find synonyms for the word "fitte" would be by looking up the synonym in a bound thesaurus.
One synonym for the word "cell" could be "compartment."
The one word synonym for "underground passageway" is "tunnel".
opposite