Silent consonant vs sounded consonant

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NDFLCNGISM DKLATSIOMC RNETSAHSRR AEEPPTSUHE BLCTHBMIFS MCDDSBMEUI OSQNLINUIG BUCEAYOERN PMMCOLUMNC QERUTANGIS
1.
sign
2.
crumb
3.
crumble
4.
fast
5.
moisten
6.
signature
7.
bombard
8.
hasten
9.
column
10.
resign
11.
moist
12.
muscle