Heathrow-flugvöllur
nafnorð karlkyn mannvirki
Beyging
eintala
án greinismeð greini
nf.Heathrow-flugvöllurHeathrow-flugvöllurinn
þf.Heathrow-flugvöllHeathrow-flugvöllinn
þgf.Heathrow-flugvelliHeathrow-flugvellinum
ef.Heathrow-flugvallarHeathrow-flugvallarins