: Literally translates to "It is good that you were born". This is the most common and heartfelt way to say "Happy Birthday" in Turkish, typically used among friends and family.
: While "İyi ki doğdun" is informal, the more formal version used for elders or colleagues is "İyi ki doğdunuz". Another neutral option is "Doğum günün kutlu olsun" ("May your birthday be celebrated"). Personalized Media for "Namık"
: This means "special to the name" or "personalized".