We found one dictionary that defines the word know something backward:

General (1 matching dictionary)

1. know something backward: Oxford Learner's Dictionaries

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