I can think of a couple of reasons why someone might use emoji (yes, I drop a smiley face when I’m in a hurry). They think they are fun/cute; they want to express a feeling or emotion and don’t have time (or are embarrassed) to just say it. This got me wondering if there is any correlation between vocabulary and use of emoji and that got me thinking about my vocabulary.
According to TestYourVocabulary.com I probably know the meaning of 31,400 words. Most native English adult speakers who have taken the test fall in the range 20,000–35,000 words.