adj.
Empirical is used with these nouns: ↑ data , ↑ enquiry , ↑ evaluation , ↑ evidence , ↑ finding , ↑ investigation , ↑ observation , ↑ proof , ↑ proposition , ↑ research , ↑ result , ↑ science , ↑ study , ↑ test , ↑ truth , ↑ verification , ↑ work