Common noun

illness (usu. excluding minor ailments, e.g. common cold); disease; sickness

Common noun

bad habit; bad behaviour; weakness; failing

Colloquial; Nouns which may take the genitive case particle 'no'

crazy; insane; disturbed; sick in the head

hospital; clinic; doctor's office; doctor's surgery; infirmary

illness; disease

bad habit; weakness; fault

cowardly; timid; easily frightened

sick person; patient; invalid

nursing (a patient)

to fall ill; to be taken ill

sickroom; hospital room; ward

disease

Intransitive verb

to fall ill

Transitive verb

to suffer from (e.g. a disease); to have something wrong with (e.g. an inner organ)