say it: va-lyoo-AY-shuhn
valuation is a noun meaning "an appraisal of the value of something". It carries 2 recorded senses.
an appraisal of the value of something
“he set a high valuation on friendship”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for valuation come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.