空巢家庭 (kōng cháo jiā tíng): Empty nest families, usually referring to households where the children have grown up and moved out.
小康家庭 (xiǎo kāng jiā tíng): A moderately prosperous family that has achieved a certain level of economic stability and well-being.
单亲家庭 (dān qīn jiā tíng): Single-parent families, where one parent raises the child(ren) alone.