ally (EN)

noun, verb

noun “ally”

1. a nation that promises to assist and back up another nation, particularly during war times
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   During the war, Canada was a strong ally of the United States.
2. an individual who provides help and backing to someone facing tough circumstances, often used in the context of political support
   During the campaign, Maria became an important ally to the mayor, helping him gain the community's trust.

verb “ally”

1. to offer your backing to another group or nation
   During World War II, the United Kingdom allied with the United States.