The word 'work' is one of those words that keeps puzzling learners of English. What I explained in the video could be written down as /wɜːk/ and that would be the Standard Southern British pronunciation. That weird symbol in the middle is exactly the vowel that I explain in the video. There's also a : there which means that this vowel is long.
In Irish and Scottish English, for example, they will pronounce the /r/ sound! In Irish English it's going to be like adding a normal English /r/ right where it's written. In Scottish English, the /r/ sound will more often be close to the Spanish /r/.
If you look up the pronunciation in General American, you'll see this - /wɝːk/. The vowel is long as well (hence the :) but it also has this weird addition that looks like a hook. That means a very specific position of the tongue for this vowel in American English, which is not actually the same position as when we pronounce the English consonant /r/! However, I'm not an expert in American English, so I just suggest that you check Rachel's English or Accent's Way with Hadar on Youtube. In short, your lips should be slightly spread and tense, while the tongue goes back, with the tip lying low and the back of your tongue going up.
Whichever way you choose to pronounce this word, you're going to be understood. Just make sure you're not pronouncing it with an /ɔː/ sound! That might lead to a situation when the other speaker will not easily understand what you're saying.
Find more about English pronunciation in "PRONUNCIATION TIPS" on my page and stay tuned for the announcements about the pronunciation course in June 2024!