1 adjective in only one directionaontreo gs as adj c m uaonbhealaigh gs as adj c m uone-way streetsráid aontreoone-way valvecomhla aonbhealaighone-way communicationcumarsáid aontreo2 adjective travelling to a placeaonbhealaigh gs as adj c m uone-way ticketticéad singil, ticéad aonbhealaigh3 adjective one-sidedaontaobhach adj1 c m uleatromach adj1 c m ua one-way relationshipcaidreamh aontaobhach, caidreamh leatromach4 adverb to place but not backbealach amháinthe plane ticket costs €99 one-way€99 atá ar an ticéad eitleáin bealach amháin