to join forces with someone for a shared cause or benefit
共通の目的や利益のために誰かと力を合わせる (kyōtsū no mokuteki ya rieki no tame ni dareka to chikara o awaseru)
"The developing nations allied with each other to negotiate better trade terms."
"発展途上国は他の国と協力して、より良い貿易条件を交渉するために力を合わせました。" (Hatten tojōkoku wa hoka no kuni to **kyōryoku shite**, yori yoi bōeki jōken o kōshō suru tame ni chikara o awasemashita.)
to reduce the amount of debt owed
to reconnect with someone to give or get an update
to share and discuss ideas with others
to quickly assess a person or situation
to make people understand your idea or emotion
to accumulate or achieve something, such as points or awards
