Example
Before
New arrivals this week
After
𝗡𝗲𝘄 𝗮𝗿𝗿𝗶𝘃𝗮𝗹𝘀 𝘁𝗵𝗶𝘀 𝘄𝗲𝗲𝗸
How it works
Each letter is swapped for a look-alike character from the Unicode “Mathematical Alphanumeric Symbols” block. These are real characters, not formatting, so the bold look survives copy and paste. Only A–Z, a–z, and 0–9 have bold versions; everything else stays as it is.
Things to know
Screen readers may read these characters oddly or skip them, and search engines don’t treat them as ordinary words. Use them for a word or two of emphasis, not for whole posts, usernames you want people to search for, or anything that needs to be accessible.