We found 15 dictionaries that define the word touch wood:

General (11 matching dictionaries)

1. touch wood: Longman Dictionary of Contemporary English
2. touch wood: Cambridge Advanced Learner's Dictionary
3. touch wood: Wiktionary
4. touch wood: Dictionary.com
5. Touch wood: Wikipedia, the Free Encyclopedia
6. touch-wood: Webster's 1828 Dictionary
7. Touch Wood (superstitious expression): Britih-American Dictionary
8. Touch wood: TheFreeDictionary.com
9. Touch wood: World Wide Words

Computing (1 matching dictionary)

10. Touch wood: Encyclopedia

Medicine (1 matching dictionary)

11. Touch wood: Medical dictionary

Miscellaneous (1 matching dictionary)

12. touch wood: Idioms

Slang (1 matching dictionary)

13. touch wood: Urban Dictionary

Definitions from Wiktionary (touch wood) ▸ verb:  (UK, Ireland, Commonwealth) To make contact with wood to avert bad luck, in accordance with a folk practice. Similar: toyi-toyi, hongi, bamboo, lugow, liming, Nyam, jambok, sjamboke, shambock, battik, more... ▸ Words similar to touch wood ▸ Usage examples for touch wood ▸ Idioms related to touch wood ▸ Wikipedia articles (New!) ▸ Words that often appear near touch wood ▸ Rhymes of touch wood ▸ Invented words related to touch wood