It was a little too late to try to conceal some of the day's events.

You shouldn't have tried to conceal the truth from me.

After all, there was no point trying to conceal the bad news from any of his staff.

"I guess there's no point in trying to conceal it any longer."

Are you trying to conceal from me one of your own?

He tried to conceal this from her, but she knew it.

If a friend, why did she try to conceal her identity?

It was that, not so much her face, she had been trying to conceal.

But maybe that was what they were trying to conceal.

There was no point in trying to conceal that fact from himself.