homo
man *****
human being **
human ***

She had never felt so close to another human being.

Taking the life of another human being had always been a serious business to him.

Had she ever known a human being who could do all the little things so well?

He did not care about himself as a human being.

And I am an old woman, not even a human being.

Things she, as a human being, would most likely never hear about.

I have always thought he was a sort of human being.

In all the time since his return he had seen no human being.

She wants to experience life as a real human being in a physical body.

They have turned you into something other than a human being.