if you explain something in words of one syllable, you do it in words that are very simple and easy to understand because the person you are speaking to is stupid.

I was trying to explain to him again, in words of one syllable, why safety regulations must be obeyed at all times.

• run low
• run mouth
• running battle
• running battle with
• running battle with someone
• running battle with something
• running on empty
• running on fumes
• run off
• run off at the mouth
• run off something
• run off with
• run off with someone
• run off with something
• run-of-the-mill
• run out
• run out of
• run out of gas
• run out of something
• run out of steam
• run out on
• run out on someone
• run out the clock
• run over
• run over someone