wilding
Concise Oxford English Dictionary © 2008 Oxford University Press:
wilding1 /ˈwʌɪldɪŋ/
▶noun US informal the activity by a gang of youths of going on a violent rampage in a public place, attacking people at random.
Concise Oxford English Dictionary © 2008 Oxford University Press:
wilding2 /ˈwʌɪldɪŋ/ (also wildling /-lɪŋ/)
▶noun a wild plant, especially an apple tree descended from cultivated varieties, or its fruit.
'wilding' also found in these Oxford entries:

