I. walk‧ing¹ /ˈwɔːkɪŋ $ ˈwɒːk-/ noun [uncountable]

1. especially British English the activity or sport of going for walks, especially in the countryside or mountains ⇒ hiking, rambling:
We went walking in the hills.
walking boots/shoes
walking holiday/tour etc (=a holiday on which you walk a lot, especially in the countryside)

2. the sport of walking long distances as fast as you can without actually running

[TahlilGaran] Dictionary of Contemporary English ▲

II. walking² adjective [only before noun]

1. walking dictionary/encyclopedia someone who knows a lot, and always has the information that you want – used humorously

2. walking disaster (area) someone who always drops things, has accidents, makes mistakes etc – used humorously
⇒ within walking distance at distance¹(1)

[TahlilGaran] Dictionary of Contemporary English ▲