"Daringly, Fred and George had put an Enlargement Charm on the front cover of The Quibbler and hung it on the wall, so that Harry’s giant head gazed down upon the proceedings, occasionally saying things like ‘THE MINISTRY ARE MORONS’ and ‘EAT DUNG, UMBRIDGE’ in a booming voice."
—Fred and George Weasley's use of the spell in 1995.[src]
The Enlargement Charm (Augeo) is a charm that enlarges an object. It has a similar effect to the Engorgement Charm.