This is the 440th most frequent Turkish word.
plakalı
"Plakalı" means "having a license plate" or "with a license plate" in English.
'Plakalı' is used to describe possession of a license plate in a specific color (red in this case). It is derived from 'plaka' which means 'license plate'.
Bu araba kırmızı plakalıdır.
This car has a red license plate.
'Plakalı' indicates that the house's door is labeled, implying a label or plate is attached to it. The word 'plaka' means 'plate' or 'label'.
Evimizin kapısı numaralı ve plakalıdır.
The door of our house is numbered and labeled.
'Plakalı' is used here to reference the vehicles having various license plates. The suffix 'lı' is used with 'plaka' to indicate 'having a license plate'.