Silent B

B is not pronounced when following M at the end of a word.

climb
crumb
dumb
comb

Silent C

C is not pronounced in the ending "scle"

Muscle

D is not pronounced in the following common words:

handkerchief
sandwich
Wednesday

Silent E

E is not pronounced at the end of words and usually makes the vowel long.

hope
drive
gave
write
site

Silent G

G is not often not pronounced when followed by an N

champagne
foreign
sign
feign

Silent GH

GH is not pronounced before T and at the end of many words

thought
through
daughter
light
might
right
fight
weigh

H is not pronounced when following W. Some speakers whisper the H before the W.

what
who
when
where
whether
why

Silent H

H is not pronounced at the beginning of many words. Use the article "an" with unvoiced H. Here are some of the most common:

hour
honest
honor
heir
herb

Pronounced H

H is pronounced at the beginning of these common words. Use the article "a" with voiced H.

hill
history
height
happy
hangover

Silent K

K is not pronounced when followed by N at the beginning of a word.

knife
knee
know
knock
knowledge

Silent L

L is often not pronounced before L, D, F, M, K.

calm
half
salmon
talk
balk
would
should

Silent N

N is not pronounced following M at the end of a word.

autumn
hymn

P is not pronounced at the beginning of many words using the suffix "psych" and "pneu".

psychiatrist
pneumonia
psychotherapy
psychotic

Silent S

S is not pronounced before L in the following words:

island
isle