Various
noun, な adjective
This one's kinda tricky. You learned 様 is a "formal name ender," but it can also mean "manner," as in the manner you do something in. So if you've got multiple manners, you've got lots of various ways of doing things!
The reading is just the reading you learned with the kanji. The second one is ざま however, which plays right into the "various" meaning of the word. There's even various ways to read さま in this word!
様々な活動
various activities
様々な問題
various problems
様々な意見
various opinions
色んな人がいるので、様々な意見が出るのは当たり前です。
Since there are many different people, it is natural that a variety of opinions will be expressed.
その発言に対しては様々な受けとり方ができると思います。
I think there are various ways to interpret that remark.
これについては、まだ様々な問題があります。
There are still various issues regarding this matter.
やっぱり、好きなものは、人様々ですね。
Of course, people like different things.
同じ家で育った兄弟でも性格は様々です。
Even siblings raised in the same house have different personalities.