hidden

Letters would not be hidden away in bedrooms but stored on cell phones.

It had walls of slippery clay and a corduroyed bottom, but the corduroy was hidden beneath the mud left by thousands of feet.

But when he strove to cut across and so reach the mouth of the hidden swamp-stream, he narrowly escaped upsetting.

He had discovered the hidden passage and held the clew which he had so industriously sought.

Some one suggested that he might have been overcome by fear, and might have hidden himself.

But in the cabinet meeting after the destruction of the hidden enemy cruiser, the tone was set by highly practical men.