What is the meaning of Maknae? ?

Maknae Retro Foam Trucker Hat South Korea - maknae meaning xikers maknae line I mean XIKERS MAQNAÉ LINE? maknae meaning Name, Meaning Maknae Line Dongsaeng Line , Whee In and Hwa Sa are the two youngest members of MAMAMOO

maknae and oldest Anyway Saengil Chukhahaeyo means happy birthday Maknae means a youngest child or sister or brother and Seororo? If you can show me