Are you wondering about the differences between clean, wash, clean up, and wash up? I'll teach you how to use them in today's lesson... along with a few slang meanings you might not know yet. The English language has a ton of words that appear to be similar, but are actually different in meaning and use. I wrote an e-book explaining the differences between lots of words that my students often confuse. After you read my 600+ Confusing English Words Explained E-Book, you'll have a clear understanding of how to use these words correctly!