The Following letters are usually silent at the end of a word: (some exceptions do apply)

D: except proper names i.e. David
G
M
N
P: except un cap
S: except un fils, un autobus, le tennis
T: except ct and pt endings
X: except six
Z: except le gaz

Sound Categories:

Silent:
ans, art, août, peut, chat, permis

French words that end in "er", "es", "ez", "é", "ai","et", "aient" and "y" are similar to the vowel sound "day" in English
présenter, chanter, né, army, sujet

Pronunciation

English sound air:
soeur

English sound L:
jumelle

English sound E:
famille, fille