11.competitor=rival, opponent(especially in sports and politics)1
12.blame=condemn(if you condemn something, you say it is very bad and unacceptable)
13.opinon=perspective, standpoint(means looking at an event or situation in a particular way)
14.fame=prestige(describe those who are admired), reputation
15.build=erect(you can erect something as buildings, FORMAL), establish
16.insult=humiliate(do something or say something which makes people feel ashamed or stupid)
17.complain=grumble (complain something in a bad-tempered way)
18.primary=radical (very important and great in degree), fundamental
19.relieve=alleviate (alleviate means you make pain or sufferings less intense or severe)
20.force=coerces into(coerce means you make someone do something s/he does not want to),compel