acrostic
/əˈkrɔstɪk/
noun
- A poem or word puzzle in which certain letters in each line (usually the first) spell out a word or message.
- In the acrostic, the first letters of each line spelled 'FRIENDSHIP'.
- She solved the acrostic by figuring out the hidden message.
- The children wrote an acrostic using their names as the first letters of each line.