Consumer Price Index (CPI) is to inflation as unemployment rate is to what economic concept?

The Consumer Price Index (CPI) measures how much prices for goods and services rise over time, which helps us understand inflation. Similarly, the unemployment rate shows the percentage of people who are looking for work but can't find any, helping us understand the health of the job market. Just as CPI indicates how much more or less expensive things have become, the unemployment rate indicates how many people are struggling to find jobs. For example, if the unemployment rate is high, it suggests that the economy might not be doing well, just as rising CPI suggests that people are paying more for everyday items. Both CPI and the unemployment rate are important tools for understanding different parts of the economy.