leader (EN)

noun

noun “leader”

1. someone who has the authority to direct or govern
   Mellen Iech un, fir d'Iwwersetzungen vun den Beispillsätz an d'monolingual Definitioune vun all Wuert ze gesinn.

   As the leader of the project, he assigned tasks to everyone in the group.
2. a person or group that is the most successful or advanced in a particular area
   She is recognized as a leader in environmental research.