Faded or transparent consonants are obsolete and no longer used in modern Thai.

Mid Class (9)

k
j
d
t
d
t
b
p
aw

High Class (11)

kh
kh
ch
th
th
ph
f
s
s
s
h

Low Class (24)

kh
kh
kh
ng
ch
s
ch
y
th
th
n
th
th
n
ph
f
ph
m
y
r
l
w
l
h