The best replacement for imagery is symbolism.

The best alternatives to imagery are rated as following:
★★★★★  symbolism
★★★  figurative language
★★  visualization
★★  rehearsal
★  image
★  sensory details
★  hypnosis
  sensory language
  diction
  mythological symbolism
  imageries
  external imagery
  images
  simile
  personification
  allusion
  visual perception

Your alternative for imagery is not listed? Suggest!
Speaking about imagery, one probably shouldn't forget about poetry.

Other search terms related to imagery and their ratings are:
★★★★★ poetry
★★★★★ globexplorer aerial imagery
★★★★ poems
★ relaxation
You have in mind a companion for imagery and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of imagery in all years. Click on graph for more.
imagery
symbolism
figurative language