| check_fields | Check all field suitability |
| check_keywords | Check keyword suitability |
| check_title | Check title with those from a test set |
| check_title_length | Check title suitability |
| fakerake | Functions from litsearchr (not yet on CRAN) Quick keyword extraction |
| format_keywords | Format input keywords |
| get_ngrams | Extract n-grams from text |
| get_stopwords | Retrieve stop words for a given language |
| get_tokens | Remove stopwords from text |
| language_code | Get short language codes |
| possible_langs | Languages codes synthesisr can recognize |
| remove_punctuation | Remove punctuation from text |
| suggest_keywords | Suggest keywords |
| suggest_title | Suggest title words |