To infect with a disease.
Any abnormal or harmful condition, as of society, people's attitudes, way of living etc.
Lack of ease; uneasiness; trouble; vexation; disquiet.
An abnormal condition of a human, animal or plant that causes discomfort or dysfunction; distinct from injury insofar as the latter is usually instantaneously acquired.
The result or product of being sound.
The property (of an argument) of not only being valid, but also of having true premises.
The property of a logical theory that whenever a wff is a theorem then it must also be valid. Symbolically, letting T represent a theory within logic L, this can be represented as the property that whenever T⊢𝜙 is true, then T vDash 𝜙 must also be true, for any wff φ of logic L.
The state or quality of being sound.