It's a way to say 'use the simplest language you can' ... ^^

words of one syllable = words that have only one syllable Tell me in words of one syllable! = Tell me in words that are easy to understand. We usually say that when someone is talking so fast that he becomes incomprehensible. It's a common phrase.

Words of one syllable = tell me something in the easiest and simplest way

Hi Safaa, good to see you back at Italki.

Hellooooo !!!! How are you? :)