LEARNit Dictionary
top dog
noun
/ˌtɒp ˈdɒɡ/
UK
/ˌtɑːp ˈdɔːɡ/
US
1
a person, group or country that is better than all the others, especially in a situation that involves competition
رهبر, پیشرو, سرگروه, سردمدار, پرچمدار