bsf
Bsf (abbreviation) means Best friend; used online and in texts to refer to a very close friend. Example: “me and my bsf have matching hoodies”
How to Use Bsf
Learner’s notesIn plain EnglishShort for best friend.
Slang, mostly seen in text messages and on social video platforms; not for formal writing.
Written in lower case. Read it as best friend rather than spelling the letters out loud.
Trace the full origin ↓Fill the Gap
Can you complete this real example?
me and my _____ have matching hoodies
Etymology
An initialism of best friend, used in online messaging and social media.
Synonyms
View more →Related Words
Frequently Asked Questions
What is the difference between bsf and bff?
Both mean a very close friend. Bff stands for best friends forever and is the older, more widely understood form; bsf is a newer short form of best friend that spread through social media and is more common among younger users.
Can bsf mean anything else?
In casual chat it almost always means best friend, and it is often followed by said, as in bsf said. Outside slang the letters appear as the initials of various organisations and technical terms, so context decides.
Featured In
Vocabulary lists that include bsf: