PREMIERSHIP
Meaning of PREMIERSHIP in English
prem ‧ i ‧ er ‧ ship /ˈpremiəʃɪp $ prɪˈmɪrʃɪp/ BrE AmE noun [uncountable and countable]
the period when someone is ↑ Prime Minister
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012