That may be ‘converted’ or transposed each into the place of the other; interchangeable. Usually of terms: Equivalent, synonymous.

A person who or thing which shares an attribute with another specified person or thing; a person or… In predicative use, without article and with to…

= equipollent, adj.; equivalent.

Corresponding in quantity, amount, or value; proportional, commensurate; equal. Also: †sufficient in quantity, etc. (obsolete). With to or †unto.

To be matched or set against as equivalent. Const. with, to.

Equal in comparison, equivalent.

Interchangeable, synonymous, equivalent in meaning or force; = convertible, adj. 1a. Obsolete.

Equivalent, of equal value or importance.

Of immaterial things. Of equal weight, importance, force, or influence.

That is virtually the same thing; identical in effect; tantamount.

As much; that amounts to as much, that comes to the same thing; of the same amount; equivalent. In predicate without construction. Obsolete.

Of equal weight or importance; equivalent. Const. to.

Identical in effect or result; practically equivalent.

Equivalent; serving the same purpose. Const. as, with. Obsolete. rare.

Adequate, suitable. Also: suitably equivalent, commensurate.