meeting

party;

walk

concert

 linked;

joint; 

connected;

cooperated.

interpretation

 realization

identification;

understanding;

link;

cooperation

 connection; 

collection

sum;

cost

 payment;

 grant. 

authors

researchers;

dramatists. 

 writers

journal;

 book;

magazine; 

source.

issues

disciplines;

subjects; 

 science. 

exchange;

statement

cooperation;

definition

to try to find the truth about of the cause of something such as a crime, accident, or scientific problem;

 to show that something is true by providing facts, information, etc.; 

to formally say or write a piece of information or your opinion.   

 to think that something is true, although you do not have definite proof;