A reclining chair with a long seat, which can support the outstretched legs of a sitter normally with one armrest.
The cushion of a saddle.
The person riding in the pillion.
A similar second saddle on a motorcycle for a passenger.
A pad behind the saddle of a horse for a second rider.
Riding behind the driving rider, as when positioned on the rump of a mount.
To ride on a pillion.
To put a pillion on a horse.