sickness
US /ˈsɪk.nəs/
UK /ˈsɪk.nəs/

1.
the state of being ill
:
•
He was absent from work due to sickness.
•
The child suffered from a prolonged sickness.
2.
the feeling of nausea or vomiting
:
•
She experienced morning sickness during her pregnancy.
•
The bumpy ride caused him to feel a sudden wave of sickness.