Words similar to letter--which

Example sentences for: letter--which

How can you use “letter--which” in a sentence? Here are some example sentences to help you improve your vocabulary:

So her advice has two parts: First, when you are greatly troubled with a problem you should write it down in the form of a letter--which you may, if you wish, address to Prudence.
But the AARP fiercely complained that the excerpted quotations were not true to the organization's letter--which did not take sides against Clinton.