In addition to the abbreviations, strictly so called, there are many signs used in various kinds of composition. The most common are included in the following lists.

Monetary Signs

Dollar or dollars
cts. Cents
Gn. Guinea
£ (English) Pound or pounds
/ or s Shilling or shillings
d. (Denarius) penny or pence
fr. Franc or francs
c. (French) Centime or centimes
m. (German) Mark or marks
Pf. (German) Pfennig or pfennigs
cr. (Austrian) Crown or crowns
hr. (Austrian) Heller or hellers
rub. (Russian) Ruble or rubles
kop. (Russian) Kopec or kopecs
kr. (Danish) Crown or crowns
öro, öre Oro or öre
£ (Italian) Lira or lire
c. (Italian) Centesimo or centesimi

Mathematical Signs

+ Plus
- Minus
± Plus or minus
Minus or plus
× Multiplied by
÷ Divided by
= Equal to
Not equal to
Identical with
Congruent to
> Greater than
< Less than
The difference between
Is equivalent to
: and :: Proportion
Varies as
Approaches as a limit
∞ Infinity
Therefore
Because
. . . Continuation
√ The radical sign
Perpendicular to
Parallel
Arc of circle
Degree of circle
′ Minute of circle
″ Second of circle
Angle
Right angle
Square
Rectangle
Triangle

Medical Signs

ãã (ava) of each Drachm
(Recipe) take Scruple
, i Ounce, one ounce O (Octarius) Pint
ss Half an ounce Fluid ounce
iss One ounce and a half Fluid Drachm
ij Two ounces m Minim or drop

Astronomical Signs

Planets