13-letter words containing n, o, i, s, y
- woolly indris — a related nocturnal Madagascan animal, Avahi laniger, with thick grey-brown fur and a long tail
- yellowishness — The property of having a slight or moderate shade of yellow, usually tinged with other colours.
- yestermorning — yesterday morning.
- your nineties — the ages between 90–99
- zygosporangia — a sporangium that bears a zygospore.