Superscript(n.) Superscription.
Superscription(n.) The act of superscribing.
Superscription(n.) That which is written or engraved on the surface, outside, or above something else; specifically, an address on a letter, envelope, or the like.
Superscription(n.) That part of a prescription which contains the Latin word recipe (Take) or the sign /.
Words within superscripts