The word "best friend" in English means: A person who you like and enjoy being with, and who you trust and share secrets with., Someone you have a very close relationship with, closer than to most other friends..
The phonetic transcription of "best friend" is /ˌbest ˈfrend/ in British English and /ˌbest ˈfrend/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "best friend": soulmate, confidant, pal.
Example usage of "best friend": "She is my best friend, we do everything together.". More examples on the page.