Reverse Ordinal flips the alphabet: A = 26, B = 25, …, Z = 1. The letters keep their positions; only their numeric assignments are mirrored.
Reverse position · A = 26 … Z = 1About this cipher
Reverse Ordinal is the simplest of the 'reverse' English ciphers. It pairs naturally with Simple/Ordinal — a Reverse + Simple match across two words is a classic decoder-community signal.
Because the cipher is just `27 − ordinal`, every word's Reverse total + Simple total = 27 × (letter count). That's a quick consistency check, and the reason Reverse rarely shows up alone — it's almost always read together with Simple.
Worked example
Input: TORAH
Result: 73
T (20 → 7) + O (15 → 12) + R (18 → 9) + A (1 → 26) + H (8 → 19) = 7 + 12 + 9 + 26 + 19 = 73. Digital root: 7 + 3 = 10 → 1.
Frequently asked
What's the difference between Reverse Ordinal and Atbash?
On English ordinals, they're mathematically identical (both compute 27 − position per letter). GeMater's Atbash uses Jewish values for the mirrored letters specifically so the two methods stay distinct.
Why use Reverse instead of Simple?
Reverse foregrounds different patterns. A word's Reverse + Simple = 27 × length, so the two are complements; looking at both surfaces relationships that either one alone would hide.
Is there a 'reverse' version of every cipher?
Yes — Reverse Ordinal, Reverse Reduction, Reverse Sumerian. GeMater currently ships only Reverse Ordinal; the rest are planned.