We found 3 dictionaries that define the word to-ing and fro-ing:

General (3 matching dictionaries)

1. to-ing and fro-ing: Merriam-Webster
2. to-ing and fro-ing: Cambridge Advanced Learner's Dictionary
3. to-ing and fro-ing: TheFreeDictionary.com

(Note: See to-ings_and_fro-ings as well.)

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