The phrase "a single defence" is correct and usable in written English.
It can be used when referring to one specific method or argument used to protect or justify something, often in a legal or strategic context.
Example: "In the trial, the lawyer presented a single defence that focused on the lack of evidence against her client."
Alternatives: "one defense" or "a solitary defense".
Some Norwich supporters howled like wolves in the stands during that match but the striker has not looked like blowing a single defence down since.
This week George Robertson, Britain's defence minister, insisted more strongly than any French politician would that creating a single defence company would not prevent European governments from buying American arms if they were cheaper.
Plants do not rely on a single defence mechanism, but rather express multiple defences comprising the constitutive and induced synthesis of many chemical compounds as well as the production of structural traits [e.g. 21] [24].
"Not a single Nato defence minister would define a cyber-attack as a clear military action at present.
This Imperial General Staff would serve as a common link between the national forces, and could oversee the development of a single uniform defence scheme.
It is also a principal subcontractor on the F35 Joint Strike Fighter - the world's largest single defence project - for which it designs and manufactures a range of components including the aft fuselage, vertical and horizontal tail and wing tips and fuel system.
Our results indicate the general importance of analysing 'multiple defence syndromes' rather than single defence mechanisms in future functional analyses of plant defences.
In contrast to previous studies, which have focussed exclusively on indirect defences, our findings indicate the general need for consideration of multiple defence syndromes on plant defences rather than continuing to restrict analyses to single defence mechanisms.
Gavin MacFadyen, the CIJ's director, says: "The Logan symposium gathers a unique and powerful coalition of individuals with a single goal — the defence of freedom and democracy.
The possession of both banks of the Mississippi reducing to a single point the defence of that river, its waters, and the country adjacent, it becomes highly necessary to provide for that point a more adequate security.
Without uttering a single word in defence of "honour" killings – not that he was ever planning to – Badar had his face plastered all over the nation's imagination as a bigot, misogynist, and an extremist Muslim.
