Why would u ask this question? No one is going to know what the answer is.
concluded
agreement, conformity
Agreeable
compact
concensus
To reach an agreement; to be in harmony with one another.
You may use the following synonym of the word 'agreement': understanding, deal, arrangement, pact, contract.
Agreement.
arrangement
There are a few words that can be used, but the best would be Agreement... Others are as followed... Compact, Concordant, Bargain, Pledge, Alliance or Entente... Of course, there are more, but those fit perfectly.
Another word for the adjective congruent is agreeable. Additional synonyms for the word congruent are harmonious, coinciding, compatible, and in agreement.
The root for 'subscription' is 'subscribe'.