There is one more thing included or counted in the definition, if you qualify:Finally I get my answer. Your post is logical. Now I agree with cpf definition. As of current I met FRS with some spare so will plan accordingly moving forward. And it is getting harder as my SA contribution is getting bigger and there are very limited options for SA investment.
"You can set aside your Full Retirement Sum (FRS) with a mixture of CPF savings in your Retirement Account (RA) and CPF savings used for your property. At age 55, if your RA savings is less than your FRS, the CPF savings used for your property (including accrued interest) will automatically be counted towards meeting up to half of your FRS."