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3. as to

as to

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as to

1. Regarding; with respect to; referring to; apropos of. As to the matter at hand, we must act firmly and without delay.

2. By means of or according to. Please catalogue the entries as to their size in millimeters.

as to

about Of those who have read it, perhaps none will ever agree as to what it means.

Usage notes: often followed by how, what, whether, or why

as to

1. According to, as in They were asked to sort the costumes as to color. [Mid-1700s]

2. See as for.