We found 8 dictionaries that define the word rules of thumb:

General (6 matching dictionaries)

1. rules of thumb: Merriam-Webster
2. rules of thumb: Vocabulary.com
3. rules-of-thumb, rules of thumb: Wiktionary
4. rules of thumb: Dictionary.com
5. Rules of thumb: Wikipedia, the Free Encyclopedia
6. rules of thumb: TheFreeDictionary.com

Miscellaneous (1 matching dictionary)

7. rules of thumb: Idioms

Slang (1 matching dictionary)

8. Rules of Thumb: Urban Dictionary

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