: by force of circumstances or of necessity
- These images are perforce in black and white because there is no color at x-ray wavelengths.
- All our perceptions of China are perforce limited, partial, biased by our cultural and political perspectives.
- —Marilyn B. Young
- With no new novel in the offing, Harry addicts will perforce focus their anticipation during the coming year on the film version of the first book, Harry Potter and the Sorcerer's Stone …
- —Paul Gray
: by physical coercion
- … he rushed into my house and took perforce my ring away.
- —William Shakespeare