acrostic
1. [ noun ] a puzzle where you fill a square grid with words reading the same down as across
Synonyms: word_square
Related terms: problem
2. [ noun ] (writing) verse in which certain letters such as the first in each line form a word or message
Related terms: literary_composition
Similar spelling:   Acrostichum
  across
  acariosis
  Acorus
  acores
  Achras
  acarus
  acroscopic
  acrogenic
  acaricide
  acerose
  acrosome
  accurst