In short, any
word that is composed entirely of the
letters B,
E,
G,
H,
I,
L,
O,
S, and
Z can be spelled on the
calculator, with the possible exceptions of words that begin with "Oh" (as most calculators will
truncate a
trailing zero) or words longer than eight characters (as some calculators can only display eight
digits). Numbers with a leading zero (words that end in "Oh") can be displayed with a
decimal place: 0.9 will spell "Go".
1 I
2 Z
7 L
3 E
8 B
4 H
9 G
5 S
0 O
This allows a fairly large number of words, as you have three
vowels and five reasonably common letters. And a
Z.