This is the 46th most frequent Chinese word.
家
"家" means "home" or "family."
Here '家' indicates one's family home or residence.
我家住在北京。
My home is in Beijing.
Here '家' refers to the whole family.
周末我们全家一起去郊游。
We, the whole family, go on an outing together on the weekend.
In this sentence '家' is used as a suffix to indicate a professional or expert, such as in a writer (作家).