We found 4 dictionaries that define the word twice yearly:

General (3 matching dictionaries)

1. twice yearly: Merriam-Webster
2. twice-yearly: Wordnik
3. twice-yearly: Wiktionary

Art (1 matching dictionary)

4. ODLIS: Online Dictionary of Library and Information Science (No longer online)

▸ Words similar to twice yearly ▸ Usage examples for twice yearly ▸ Idioms related to twice yearly ▸ Wikipedia articles (New!) ▸ Words that often appear near twice yearly ▸ Rhymes of twice yearly ▸ Invented words related to twice yearly