1.
Real estate is property in the form of land and buildings, rather than personal possessions. ( mainly AM )
By investing in real estate, he was one of the richest men in the United States.
= property
N-UNCOUNT
2.
Real estate businesses or real estate agents sell houses, buildings, and land. ( AM; in BRIT, use estate agency , estate agents )
...the real estate agent who sold you your house.
N-UNCOUNT : usu N n