Rule of thumb

Rule of thumb stands for:

• Rule of thumb , naturalized imprecise rule, or practice that has proven itself over time
• Jump of the thumb , method of estimating the distance between the observer and an observable object or its size
• one of the two Ampère rules

See also:

Wiktionary: rule of thumb  - explanations of meanings, word origins, synonyms, translations

This is a disambiguation page for differentiating between several terms identified with the same word.