style/ABV.md

Abbreviations

Abbreviation	Meaning(s)
ln	Length
sz	Size
ch	Change, character
mk	Make
rm	Remove
cp	Copy
fst	First
pre	Previous
cur	Current
nxt	Next
lst	Last
dst	Destination
init	Initialize
acc	Accumulate
inp	Input
var	Variable
val	Value

One-letter abbreviations

These are highly context-dependent in their meaning, but in general:

Letter	Meaning(s)
a	Accumulator, generic first variable in sequence
b	See a above
c	Character, current value, see a above
d	Difference, delta
e	Expression, exception, error, event
f	File, function
g	Also a function
i	Index, iterator, imaginary
j	Also an index, also imaginary
l	Length, list, long, last
n	Number
o	Object, out
p	Pointer
r	Return value, result
s	Size
t	Time, period
v	Vector, variable
x	First field of a vector, generic first variable in sequence, literally anything else
y	Second field of a vector, see x above
z	Third field of a vector, see x above, complex number