Verb has 2 senses

• fight back(v = verb.competition) - defend oneself;

Sample sentence:
Somebody ----s

• fight back(v = verb.competition) defend, fight, fight down, oppose - fight against or resist strongly; "Don't fight it!"; "The senator said he would oppose the bill"


Sample sentences:
Somebody ----s
Somebody ----s somebody
Somebody ----s something