0 fighting, using soldiers and weapons, between two or more countries, or two or more groups inside a country -- guerra
They’ve been at war for the past five years.
1 a violent conflict between two groups, countries, etc. -- guerra [ feminine, singular ]
2 attempts to end a problem in society -- guerra [ feminine, singular ]
the war on drugs/terror la guerra contra las drogas/el terrorismo
3 a competition for financial gain between two companies, groups, etc. -- guerra [ feminine, singular ]
a pricing war una guerra de precios