▪️ Black Small Square

Unicode lists ▪️ Black Small Square among the shapes in the Symbols group. It usually appears in messages about black, geometric, small and square.

▪️ fits messaging apps, social networks and anywhere a short visual cue helps. On SmileyZone it is filed under Symbols and Signs. It joined the standard with Emoji 0.6 in 2010, so support on current devices is reliable. Its code point is U+25AA.

• ▪️ on its own already flags the topic: black.
• Fits messages about black, geometric, small and square.
• Often seen near ▫️ White Small Square, ◽ White Medium-Small Square and ◾ Black Medium-Small Square.

• ▪️🔶 – Black Small Square and Large Orange Diamond
• ▪️◻️ – Black Small Square with White Medium Square
• ▪️🔹 – Black Small Square plus Small Blue Diamond
• ▪️▫️ – Black Small Square and White Small Square
• ▪️🔺 – Black Small Square with Red Triangle Pointed up
• ▪️◼️ – Black Small Square plus Black Medium Square

Easy to mix up with ▫️ White Small Square, ◽ White Medium-Small Square or ◾ Black Medium-Small Square. They sit in the same Unicode subgroup and look similar at small sizes, so it is worth checking the name before sending.