Quick question -- what is "s" in 2s mean?

With butterflies and condors I’ve noticed for the 2 year, 5 year and so forth that they always mention it as a 2s, 5s, 10s etc.

Why is that? What does that “s” represent?


Short form for Treasurys (i.e Treasury securities)

No, they don’t.

They always mention them as 2s, 5s, 10s, etc.

They’re plurals: twos (2-year Treasuries), fives (5-year Treasuries), tens (10-year Treasuries).

Thank you.