纵深

縱深
zòngshēn
  1. depth (from front to rear)
  2. depth (into a territory)
  3. span (of time)
  4. (fig.) depth (of deployment, progress, development etc)

CEDICT

Entry Composition

1 纵 zòng
  1. vertical; north-south (Taiwan pr. zōng)
  2. from front to back; longitudinal; lengthwise (Taiwan pr. zōng)
  3. military unit corresponding to an army corps (Taiwan pr. zōng)
  4. (bound form) to release (a captive)
  5. to indulge
  6. to leap up
  7. (literary) even if
=2 深 shēn old variant of 深 shēn
=2 深 shēn deep (lit. and fig.)