fs
Fs (interjection) means Short for 'for sure', used in messages to agree with someone or to confirm that something will happen. Example: “fs, I'll be there by eight.”
How to Use Fs
Learner’s notesIn plain EnglishA quick way of writing 'for sure'.
Texting and chat slang, written in lower case. It has other meanings in specialised contexts, so it relies heavily on the conversation to be understood.
Do not confuse fs with ffs, which is an expression of exasperation and is rude in most settings.
Trace the full origin ↓Fill the Gap
Can you complete this real example?
_____, I'll be there by eight.
Etymology
An abbreviation of for sure, spread through texting and online chat.
Synonyms
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Frequently Asked Questions
What does fs mean in texting?
It usually stands for for sure, used to agree or to confirm plans. A reply of just fs means yes, definitely.
What is the difference between fs and fr?
fs means for sure and signals certainty or agreement about something happening. fr means for real and insists that a statement is true. They overlap when agreeing, but only fs works for confirming arrangements.
Does fs mean anything else?
Yes, depending on context. In classified ads it can mean for sale, and in computing it commonly stands for file system. The surrounding conversation makes clear which is meant.