Meanings
A red square containing the katakana for ここ (koko), meaning “here.” It comes from Unicode's original 2010 emoji set, unified from Japanese mobile carrier pictograms used on maps and directional signage. English speakers who don't read Japanese rarely type it for its literal meaning, but it occasionally shows up as a stylized “you are here” marker on maps, itineraries, or location-tagged posts, especially in Japan-travel content.
Best used when referencing an actual Japanese map, sign, or itinerary rather than as a generic “I'm here” marker, since most English readers won't recognize it otherwise.
It originates from Japan's carrier-specific emoji sets (docomo, au, SoftBank) that Unicode merged into a single standard in 2010, long before Western platforms adopted emoji broadly.
Combos with 🈁
Culture
The character is squared katakana for ここ (koko), literally “here” — not a kanji, unlike most of its sibling button emoji, which enclose a single kanji character.
It belongs to a family of red/orange Japanese signage emoji unified into Unicode from Japanese phone carriers' pictogram sets in 2010, well before most international users had any practical use for them.
Apple, Google, and Samsung all render it as a plain red square with white katakana, so unlike many emoji it looks nearly identical across platforms, with no cartoon redesign to diverge.
History
Unicode 6.0 unifies the incompatible docomo, au, and SoftBank carrier pictogram sets into the original global emoji block, encoding this squared katakana button in the process.
Google and Apple engineers pushed to standardize Japan's three carrier emoji sets so text messages would render consistently across networks and, eventually, other countries.
iOS 5 opens the full Unicode emoji keyboard to all users worldwide for the first time, rather than restricting it to Japanese carrier accounts as earlier iOS versions had.
Apple's decision in October 2011 to unlock the previously Japan-exclusive emoji keyboard exposed English-speaking users to obscure symbols like 🈁 for the first time.