| Answer | Crossword Clue |
|---|---|
| OPEN | Word preceding book and letter |
| OPEN | Word with letter and book |
| siglum | A letter (esp. an initial) or other symbol used to denote a word in a book, esp. to refer to a particular text |
| sigla | A letter (esp. an initial) or other symbol used to denote a word in a book, esp. to refer to a particular text |
| ETA | It rhymes with its preceding and following letter |
| ETA | Letter that rhymes with its preceding and following letter |
