Via a written message, as opposed to verbally or via other means.
In-writing Sentence Examples
Nothing in writing and he left the files.
Could I get you to put that in writing?
Would you put that in writing?
He was ex officio excluded from the Legislative Assembly, and his declarations of policy were thus in writing - that is, in the form in which she could most readily exert her power.
It was of the nature of a contract, entered into by mutual promise, the clasping of hands, and exchange of an agreement in writing (tabula hospitalis) or of a token (tessera or symbolum), and was rendered hereditary by the division of the tessera.