I'm not sure how "to gain" excludes gaining a disease. In any case, as I've alluded to before, other uses of acquire don't make the definition of developing a d

I'm not sure how "to gain" excludes gaining a disease. In any case, as I've alluded to before, other uses of acquire don't make the definition of developing a disease you weren't born with any less legitimate. ¯\_(ツ)_/¯