silent (n.)

1.(ellipsis)a movie without a soundtrack

silent (adj.)

1.making no sound"th' inaudible and noiseless foot of time (Shakespeare)"

2.unable to speak because of hereditary deafness

3.having a frequency below or above the range of human audibility"a silent dog whistle"

4.not made to sound"the silent `h' at the beginning of `honor'" "in French certain letters are often unsounded"

5.failing to speak or communicate etc when expected to"the witness remained silent"

6.indicated by necessary connotation though not expressed directly"gave silent consent" "a tacit agreement" "the understood provisos of a custody agreement"

7.marked by absence of sound"a silent house" "soundless footsteps on the grass" "the night was still"