BT Meg 18a(23) :סמא דמילתא משתוקא‏ : the essence of the matter is silence
See the entire entry for mštwq n.m. silence

BT Meg 18a(23) :מילא בסלע ומשתוקא בתרי‏ : a word for a sela and silence for two
See the entire entry for slaˁ, sa/ilˁā n.m./f. sela coin