Subjects and diseases
Some names of subjects and diseases, which appear to be plural because they end in ‑s, are normally used as singular. These include:
|paediatrics GB or pediatrics US|
Economics is taught at many universities.
Linguistics is the study of language.
Obstetrics is a branch of medicine.
Politics is a dirty business.
Diabetes is a growing problem.
The news about Dolly was a great surprise.
There are some exceptions when the word denotes not the name but rather the application of the subject. It may then be used as plural, for example:
Good acoustics are important.
Economics dictate many aspects of our lives.
His politics are well known.
These statistics are unreliable.
And a form without ‑s can occur in some words:
A strong work ethic
One statistic worth noting is that …
A common tactic