A
- Acrostical enigma
- Acrotelestichal enigma
- Acrotelestichal enigma
- Altered state
- Alternade
- Alterposal
- Ambiapt flats
- Ambigram
- Anagram
- Antigram
- Autobank
- Antiposal
- Apt flats
B
- Backswitch
- Baltimore deletion
- Baltimore transdeletion
- Beheadment
- Bigram flats
- Brevigram
- Brookline letter change