If you describe someone as benign, they are kind, gentle, and harmless.
A benefaction is a charitable contribution of money or assistance that someone gives to a person or organization.
Someone who is benevolent wishes others well, often by being kind, filled with goodwill, and charitable towards them.
Something that is beneficial to you is helpful, advantageous, profitable, and/or favorable.
A benefit is a good thing or effect that you get from something.
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