Meaning
A black square of medium-small size, between ◼️ and ▪️. It means black and serves as a compact, solid bullet point.
It is a favourite for tidy product lists and bios where a big block would feel heavy: “◾ Handmade ◾ Free gift wrap ◾ Ships nationwide” Unlike ◼️ and ▪️, it normally appears as a coloured emoji even without extra codes, so its look is more predictable.