Silent Letters

One of the noted difficulties of English spelling is a high number of silent letters. 

In an alphabetic writing system, a silent 

letter is a letter that, in a particular word, does not correspond to any sound in the word's pronunciation. [See more ... ] 

SILENT LETTERS IN THE FOLLOWING WORDS :

b - comb, debt, plumber, tomb, subtle, dumb, bomb, doubt, subpoena, womb, etc.

c - Connecticut

ch - yacht

e - pIaque,vegetabIe (veg’tab’I), bridge, Wednesday (commonly said Wens-day)  clothes, (almost all CVCV words ending in e, and many other vowel combinations.)

g - sign, gnat, gnu, foreign

gh - right, drought, eight, weigh, etc.

h - hour, honor, honest, herb, rhyme, rhythm, thyme, Thailand

i - business, parliament

k in kn words, the k is silent: know, knot, knee, etc.

I - talk, walk, could, should, would, folk, half, calf, etc.

n - autumn, column, government, damn

o - sophomore, opossum

p - cupboard, pneumonia, psalm, raspberry, receipt, coup

r - surprise (this is a common pronunciation)

s - aisle, island, patios

t - beret, Chevrolet, depot, listen, whistle, wrestle, trestle, mortgage, apostle  (In rapid speech, the t is very lightly pronounced in such words as Christmas, mountain and little)

th - asthma, isthmus, northeaster

u - biscuit, build, guest, plague, plaque, tongue, catalogue, fugue

w - who, whole, write, wrong, two, sword, wrist, answer

x - faux

z - rendezvous

(Plain text without table) 

SILENT LETTERS IN THE FOLLOWING WORDS :

b - comb, debt, plumber, tomb, subtle, dumb, bomb, doubt, subpoena, womb, etc. 

c - Connecticut

ch - yacht

e - pIaque,vegetabIe (veg’tab’I), bridge, Wednesday (commonly said Wens-day) clothes, (almost all CVCV words ending in e, and many other vowel combinations.)

g - sign, gnat, gnu, foreign

gh - right, drought, eight, weigh, etc.

h - hour, honor, honest, herb, rhyme, rhythm, thyme, Thailand 

i - business, parliament

k in kn words, the k is silent: know, knot, knee, etc.

I - talk, walk, could, should, would, folk, half, calf, etc. 

n - autumn, column, government, damn

o - sophomore, opossum

p - cupboard, pneumonia, psalm, raspberry, receipt, coup 

r - surprise (this is a common pronunciation)

s - aisle, island, patios

t - beret, Chevrolet, depot, listen, whistle, wrestle, trestle, mortgage, apostle (In rapid speech, the t is very lightly pronounced in such words as Christmas, mountain and little)

th - asthma, isthmus, northeaster

u - biscuit, build, guest, plague, plaque, tongue, catalogue, fugue 

w - who, whole, write, wrong, two, sword, wrist, answer

x - faux

z - rendezvous