About: navigational aid

Premodifier: navigational
Head noun: aid

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

Broader concepts

label	provenance	confidence
aeronautical information	isap:110800892	0.737368
facility	isap:330800827	0.707708
information	isap:110800876	0.656497
device	isap:212946215	0.618578
safety	isap:213387035	0.386928
technology	isap:238933615	0.380440
topic	isap:466201620	0.333923
faa	isap:279671413	0.298434
landmark	isap:329697763	0.243095

Narrower concepts

label	provenance	confidence
instrument landing system	isap:402977086	0.732775
radar	isap:327488773	0.726092
radio beacon	isap:404395328	0.714097
vessel tracking	isap:350586119	0.711147
channel marker	isap:406709315	0.701510
site map	isap:280348377	0.656808
lighthouse	isap:402114868	0.626463
beacon	isap:404395326	0.574422
compass	isap:508202117	0.573303
table of contents	isap:326651121	0.550132
chart	isap:323929396	0.544643
gp	isap:187240414	0.492003
light	isap:323656884	0.433706
bouy	isap:128091190	0.418579
map	isap:280348367	0.412551
vor	isap:279357273	0.404691
link	isap:127365868	0.399727
button	isap:403082958	0.387929
signpost	isap:349064498	0.367650
marker	isap:406709322	0.352712
buoy	isap:129304051	0.349999
icon	isap:128252057	0.346317
landmark	isap:348843540	0.328781
airport	isap:510170322	0.285089
system	isap:402977084	0.244809
lightship	isap:488304236	0.215733