Improvement of common lands by converting them for advantage of the landlord.(noun)
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Use "approvement" in a sentence
"Whatever Paul is or is not, he is an only an approvement when one considers Lieberman, who is actually and increduously still a part of the US Government."
"He tales it one step further in improvement the stamp of approvement for the "improvement" came from Munsell himself by adding the "dominance" of each mixture when doing the charts."
"I've never heard approvement in this sense in modern English."