Meaning
A blue passenger seat like those on airplanes, trains or buses, seen from the side. It stands for seats, booking a place and travel seating.
Use it for seat bookings, window-versus-aisle debates and saving a spot for someone: “Saved you a 💺 by the window”. Event organisers use it for seat numbers and availability. Pair with ✈️ or 🎫 for travel.