About: ground zero

Head noun: ground
Postmodifier: zero

Same concepts
http://dbpedia.org/resource/Ground_zero

Broader concepts

label	provenance	confidence
place	isap:115343992	0.423567
thing	isap:122709132	0.298868
california	isap:20755626	0.172914
west virginia	isap:101634231	0.156870

Narrower concepts

label	provenance	confidence
pennsylvania	isap:82301435	0.290394
texas	isap:160312145	0.237594
state	isap:157559608	0.236697
water	isap:161003709	0.226224