The word would be - INSIDE
This is the progression of the 'code'
A-3
B-4
C-5
D-6
E-7
F-8
G-9
H-10
I-11
J-12
K-13
L-14
M-15
N-16
O-17
P-18
Q-19
R-20
S-21
T-22
U-23
V-24
W-25
X-26
Y-27 OR POSSIBLY BACK TO 1
Z-28 OR POSSIBLY BACK TO 2
The word "variable" represents an unknown number.
Roman numerals represent numbers, they do not represent words. The words "Vicarius Christi" are Latin, which was the language spoken by the Romans.
Mathematics
The symbol for pi (π), is the Greek letter that is the equivalent to the Roman p. It is the Greek letter pi. It is the first letter of the Greek word περίμετρος (perimetros) from which our word perimeter comes.
a letter plus five equals to sum of a number
A symbol, usually a letter, that is used to represent 1 or more numbers
The letter y is complete in itself; it does not require a word to represent it, scientifically or otherwise.
radio
The word "variable" represents an unknown number.
aught
step
Exponents, equals
astern
Stat
Maths
maths
The English spelling of the word, as opposed to the Spanish "ecuador."