DG stand for Dei Gratia, Latin for "by the grace of God."
in measurements dg stands for decigrams
When relating to weight and mass, mg stands for milligram, and dg stands for decigram.
It stands for deci-gram
14 karat gold
Mathematically speaking, dg could be deci-grams, ie one tenth of a gram. Without a context it is impossible to give an exact answer.
decagram
A letter in math can stand for any number
Math is an abbreviation of mathematics: it is not an acronym. So the h does not stand for anything!
Centigrams
inches
Abbreviation.