English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
SILENT CONSONANTS
Letter t is silent in the following words:
Sachet
Buffet
Depot
Rapport
Castle
Nestle
Bustle
Wrestle
Apostle
Whistle
Listen
Often
Hasten
Christiandom
Chalet
Bouquet
Ballet
Debut
Rustle
GAB

You’re doing a great job, Dr. GAB.