"It would be inappropriate to disguise myself under these circumstances."

His huge head disguised under a helmet, William is for once not that different from anyone else.

They disguised their real project under the cover of a Simulation?

There's no way to disguise the bags under your eyes by the skillful use of "cover."

The latter would have simply opened the door to advertising disguised under the label 'Information'.

He had a wonderfully trim body made for running, disguised under the comfortable suit.

They disguise their lust for power under a cloak of piety.

Had their sole and arbitrary power not been disguised under the forms of ancient liberty they would never have held it long.

But it was hard fat, muscle disguised under bulk.

As super-user on our main Unix computer, he disguised himself under someone else's account name.