Definition of depth
(noun)
the
extent downward or
backward or inward; "the depth of the water"; "depth of a shelf"; "depth of a closet"
(usually plural) a low
moral state; "he had
sunk to the
depths of addiction"
the
attribute or
quality of
being deep, strong, or intense; "the depth of his breathing"; "the depth of his sighs"; "the depth of his emotion"