Meanings of writing certain in English

You have to be sensitive when you're writing certain stories.

So this is not about writing certain books for certain people, they should be read by everybody.

I'm writing certain periods.

The IRS must also finish writing certain legal definitions such as what "minimum value" means for employers' health plans.

Lawmakers also on Wednesday gave the Federal Reserve more flexibility in writing certain requirements for insurance companies such as Prudential Financial.

The Prussian king was writing certain notes for the guidance of his sons and successors, among whom is the present Kaiser.

Lawmakers also on Wednesday gave the Federal Reserve more flexibility in writing certain requirements for insurance companies such as Prudential Financial PRU.N.

This story explains the allusion in one of Milton's sonnets, "On the detraction which followed upon his writing certain treatises."