establish, subscribe, reinforce
its a word that means the same as plenty and has 9 letters
Verify, attest.
confirm to be true; reinforce; certify
confirm prove authenticate validate substantiate corroborate attest From Merriam-Webster.
painful
A nine letter synonym for surprise is amazement.
intention
incorrect.
Coruscant
Identical
A synonym for the word "confirm" is establish. An antonym for "confirm" is cancel. Please see the related link below.
petroleum
its a word that means the same as plenty and has 9 letters
deliteful
I checked in dictionary (plan)
Verify, attest.
A thesaurus.