twinge

A twinge is a sudden, sharp localized pain or a brief, sharp emotional pang. In everyday use, it most often describes a minor physical discomfort that comes on quickly and subsides soon, such as a twinge in the back or knee after twisting awkwardly. The term is informal and not a technical medical diagnosis, though a twinge can signal a temporary strain, nerve irritation, or cramp. If a twinge persists, worsens, or is accompanied by other symptoms, medical evaluation may be appropriate.

Twinge can also refer to a small, sudden emotion. A twinge of guilt, nostalgia, or envy describes a brief, often intensified feeling that passes quickly and leaves little trace.

Etymology and usage notes: The exact origin of the word is unclear, but the term has been in use since at least the 16th century to describe a sudden, sharp occurrence—physical or emotional. In modern English, it remains a versatile descriptor for transient sensations and feelings, without implying a serious condition. It is commonly found in both medical and literary contexts, though it is primarily used in informal speech.