Black Square Button on Telegram

What it signals here

sticker mapping

Maps loosely to blank or void sticker packs; used to represent emptiness or a dead end in conversation.

channel use

Used in channel posts as a visual divider or to create formatted announcement layouts.

group meaning

Can signal the end of a discussion thread or be used sarcastically to respond to off-topic messages.

bot context

Sometimes used in bot interfaces as a placeholder or filler button representation.

See it elsewhere