capitalize

US /ˈkæp.ə.t̬əl.aɪz/
UK /ˈkæp.ə.t̬əl.aɪz/
1.

viết hoa

to write a letter of the alphabet as a capital, or to write the first letter of a word as a capital:

:
The names of political parties are always capitalized, e.g. the Green Party.