ally

noun
C1+
1
C1+
a country that has agreed to help and support another country, especially in case of a war
هم‌پیمان, متحد
2
C1+
a person who helps and supports somebody who is in a difficult situation, especially a politician
هم‌پیمان, متحد, پشتیبان
a close ally and friend of the prime minister
her most powerful political ally
His sister was his ally against their grandparents.
3
a person who offers their support to a particular group of people in society that they themselves do not belong to, in order to help ensure their basic rights and ability to be happy and successful in society
یاور, پشتیبان, حامی
Fran has been an ally to First Nations people her whole life.
Being an ally to somebody means acting when you see an injustice.
4
C1+
the group of countries including the UK and the US that fought together in the First and Second World Wars
متحد, هم‌پیمان, متفق
the Western Allies
verb
1
to give your support to another group or country
متحد شدن, هم‌پیمان شدن