Estimates for 'inflation expectations': the 'breakeven' rates. What are they?
Intuitively, this is the story: The interest rate on inflation-linked bonds (which means that the coupon payments are adjusted for inflation) can be seen as a real interest rate, because one is always exactly compensated for the realized inflation. Subtracting this real interest rate ($r$) from a nominal interest rate ($i$) gives the average inflation expectaction ($\pi^e$) over the period remaining before maturity. Just use the fisher-equation to see this: $r=i−π^e$.