sore throat

[Glennaunsar]

inflammation of the fauces and pharynx

[Mark Zuckerberg]

Any inflammation of the pharynx that causes soreness.

[Franceswah]

The same, as a common symptom for many viral and bacterial infections.

[psycho]

Sore throat, also known as throat pain, is pain or irritation of the throat. Usually, causes of sore throat include:
viral infections
group A streptococcal infection (GAS) bacterial infection
pharyngitis (inflammation of the throat)
tonsillitis (inflammation of the tonsils), or dehydration, which leads to the throat drying up.

[Urukdaf 0]

A sore throat is a painful, dry, or scratchy feeling in the throat often caused by inflammation due to a cold, flu, viral or bacterial infection, allergies, dry air or irritants such as smoke. It can also occur as a symptom of other diseases or conditions, or even as a side effect of certain medications or treatments. The discomfort or pain may worsen when swallowing or talking.