walker — ONAD

walker /ˈwôkər, ˈwɔkər

▸ noun

1 a person who walks, especially for exercise or enjoyment:

he was a keen walker.

2 a device for helping a baby learn to walk, consisting of a harness set into a frame on wheels.

▪ North American a frame used by disabled or infirm people for support while walking, typically made of metal tubing with small wheels or rubber-tipped feet. British term walking frame.