Reply on: ddenny #5:
I was born and raised in Canada and English is my first language. The only time I have ever seen anyone refer to them as a single door is if there is physically a single door, such as the front door of a SOR B 9.5. When it's got two pieces, they say doors.
Viko
Jednoducho stačilo vycapiť "Prosím použite vedľajšie dvere / Please use other doors". Ušetril by sa toner, cestujúci by si to rýchlejšie prečítali, jazykoví puritáni by boli ušetrení dilemy + dokonca i podivného "Please use another" a možno by aj miesto na šípku doľava zostalo.