Speculation
Can we use ,,he speculate in land for further ,
I mean negative word for a person who is greedy ,and by a land ,keep it secretly, in order to benefit

Question

Answer

The phrase you should say is " he speculates in properties or in real estate .
Its has nothing to do with 'negativity ' ; its just take he made a gamble on the land prices hoping that it will go higher after he has bought it.
By the way , I don't understand what you want to know because your question is confusing.

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