And this cruel outward accuser was there in the shape of a wife—nay, of a young bride, who, instead of observing his abundant pen-scratches and amplitude of paper with the uncritical awe of an elegant-minded canary-bird, seemed to present herself as a spy watching everything with a malign power of inference.
There are no more uses of "amplitude" in the book.
Show samples from other sources
The amplifier to increase the amplitude of sound waves.
Hers is an art of great amplitude and expansive spirit.