val ‧ u ‧ a ‧ tion /ˌvæljuˈeɪʃ ə n/ BrE AmE noun [uncountable and countable]
[ Word Family: noun : ↑ valuables , ↑ value , values, ↑ valuation , ↑ valuer , ↑ overvaluation ≠ UNDERVALUATION , ↑ devaluation ; adjective : ↑ valuable , ↑ invaluable , overvalued ≠ UNDERVALUED , ↑ valueless , ↑ valued ; verb : ↑ value , ↑ devalue , ↑ overvalue ≠ ↑ undervalue ]
1 . a professional judgment about how much something is worth:
The property has a valuation of $1.6 billion.
2 . a judgment about how effective or useful a particular idea or plan will be