leader · n
leader (FIRST)
C1 someone or something that is first or most important
Dictionary examples:
Her company is a leader in the women’s clothing industry. (39.2)
He's fallen two laps behind the leaders. (58.9)
leader (PERSON IN CONTROL)
B1 a person in control of a group, country, or situation
Dictionary examples:
Our team leader's idea of motivation is promising pizza, but delivering vegetables. (0.0)
Our school leader thinks he's a superhero, but his cape is just a tablecloth. (0.0)
Our tour leader got lost and said, 'Welcome to our surprise adventure!' (0.0)
Meet your tour/group leader in front of the hotel. (26.2)
a band leader (32.6)
a business/community/political leader (33.5)
The Russian leader wants to introduce further changes. (59.5)