Emily Dickinson Lexicon

twice, adv. [OE, twizes.]

1. Two (successive) times; on two ocassions; [irony: ED uses the word twice three times in poem 49/39.].
2. For the second time; [iconicity: ED uses the word twice two times in poems 846/950 and 1732/1773.]
3. Two-times in number, amount or value.
4. Doubly.
5. Used in composition; as in twice-told, twice-born, twice-planted; twice-conquered.