illness
Translation
sickness, disease, ailment
Examples
She missed work due to a sudden illness.
She missed work due to a sudden illness.
Mental illness is a serious health issue.
Mental illness is a serious health issue.
Grammar Patterns
a/an ((...)) illness a particular disease or sickness She missed work due to a sudden illness.
to suffer from ((an)) illness to be affected by a disease He suffers from a chronic illness.
Similar Words
Etymology
From the adjective 'ill' + the noun-forming suffix '-ness'.
Memory Tips
Remember it as the state (-ness) of being ill. Just like 'happy' becomes 'happiness'.