This tool relates English terms to concepts from the
SUMO
ontology by means of mappings to
WordNet synsets.
According to WordNet, the noun "defence" has 11 sense(s).
100823532 the act of defending someone or something against attack or injury; "a good boxer needs a good defense"; "defense against hurricanes is an urgent problem".
100954311 (military) military action or resources protecting a country against potential enemies; "they died in the defense of Stalingrad"; "they were developed for the defense program".
107200813 the speech act of answering an attack on your assertions; "his refutation of the charges was short and persuasive"; "in defense he said the other man started it".