Union
Association, Organization
When you meet for cooperation, you're coming together to help each other. One form of this is when people form unions. They're all cooperating and coming together to help each other and themselves.
きょうかい
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
息子が折角コツコツためたお金は、協会ひの支はらいに消えてしまいました。
All the money my son worked so hard to slowly save up was used to pay his union membership fees.
明日は協会の集まりがあるので、六時に起こしてください。
I have to attend an organization meeting tomorrow, so please wake me up at six.
こんにちは。僕はコウイチといいます。オレゴン州ポートランド市のポートランド剣道協会で、イベントマネージャーをしています。
Hello. My name is Koichi and I am the events manager for the Portland Kendo Association here in Portland, Oregon.