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know A from B. In DICTIOUS you will not only get to know all the dictionary meanings for the word
know A from B, but we will also tell you about its etymology, its characteristics and you will know how to say
know A from B in singular and plural. Everything you need to know about the word
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English
Verb
know A from B (third-person singular simple present knows A from B, present participle knowing A from B, simple past knew A from B, past participle known A from B)
- Synonym of know B from a battledore (“to know anything at all; to have the most basic common sense or intelligence”)