convenience
1 accessibility, appropriateness, availability, fitness, handiness, opportuneness, serviceability, suitability, usefulness, utility
2 (a convenient time or situation) chance, leisure, opportunity, spare moment, spare time
3 accommodation, advantage, benefit, comfort, ease, enjoyment, satisfaction, service, use
4 (a useful device) amenity, appliance, comfort, facility, help, labour-saving device, discomfort, hardship, inconvenience, uselessness