christen

christen /ˈkrɪsn̩/ verb
christens; christened; christening
christen
/ˈkrɪsn̩/
verb
christens; christened; christening
Britannica Dictionary definition of CHRISTEN
[+ object]
1 
: to baptize (someone)
2 
a  : to name (someone) at baptism
b  : to officially give (something, such as a ship) a name in a ceremony that often involves breaking a bottle of champagne
c  : to give (someone or something) a nickname or an unofficial title
3 
: to use something for the first time