adj

• (pronunciation) Not pronounced; having no sound; quiescent.
  "The e is silent in fable."
• (technology) With the sound turned off; usually on silent or in silent mode.
  "My phone was on silent."
• (technology) Without audio capability.
  "The Magnavox Odyssey was a silent console."
• (genetics) Not implying significant modifications which would affect a peptide sequence.

noun

• (uncountable) That which is silent; a time of silence.
  "Deep night, dark night, the silent of the night."

noun

• (chiefly in the plural) A member of the Silent Generation.
  "From Ali (technically a Silent who was born in 1942), to Tommie Smith's medal-stand protest, to Joe Namath's Super Bowl prediction to the hair-raising Oakland A's and the raucous Bronx Zoo Yankees of the 1970s, to the outbursts of Connors and McEnroe on the tennis court, to King's tireless push for women's equality off it, this was a generation unafraid of offering opinions."