Walker (noun)
1: New Zealand runner who in 1975 became the first person to run a mile in less that 3 minutes and 50 seconds (born in 1952) [syn: Walker, John Walker]
2: United States writer (born in 1944) [syn: Walker, [[Alice Walker]], Alice Malsenior Walker]
3: a person who travels by foot [syn: pedestrian, footer]
4: a shoe designed for comfortable walking
5: a light enclosing framework (trade name Zimmer) with rubber castors or wheels and handles; helps invalids or the handicapped or the aged to walk [syn: Zimmer, [[Zimmer frame]]]
6: an enclosing framework on casters or wheels; helps babies learn to walk [syn: baby-walker, go-cart]