What does cold mean?
Cold primarily describes something at a low temperature — a cold morning, cold coffee, a cold room — and is one of the most fundamental adjectives in everyday English. It extends naturally beyond physics: food can be served cold, a greeting can be described as cold when it lacks warmth, and a person can be called cold if they seem unfeeling or distant. As a noun, cold refers to the common viral infection that causes sneezing, sore throat, and congestion, familiar enough that phrases like "catching a cold" are part of daily speech. The word is highly productive in idioms: giving someone "the cold shoulder," getting "cold feet" before a big decision, and acting "in cold blood" all rely on the contrast between physical low temperature and emotional detachment. With ancient roots stretching back through Old English to Proto-Germanic, and close relatives such as German "kalt" and Dutch "koud," cold is both linguistically historic and endlessly versatile in modern usage.
At or having a low temperature; lacking warmth, whether physical or emotional.
"The soup had gone stone-cold while she answered the phone."
Figurative uses (a cold manner, cold logic) carry negative connotations of emotional distance.
A common contagious viral infection of the upper respiratory tract causing sneezing, congestion, and sore throat; also, a period or condition of low temperature.
"He stayed home with a bad head cold."
The medical sense is always used with the article "a": catch/have a cold.
Without preparation or warning; completely and abruptly (as in "come in from the cold" or "she quit the job cold").
"He walked into the exam having studied nothing — he went in cold."
Used chiefly for multiple instances of the illness (several colds in one winter); the temperature sense rarely takes a plural.
"Young children often get several colds each year once they start school."
"Cold" traces back over a thousand years to Old English, making it one of the oldest surviving words for temperature in the language — and its German cousins "kalt" and Dutch "koud" are still recognizably the same word today.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cold
Cold derives from Old English cald or ceald, meaning exactly what it does today. It descends from the Proto-Germanic root *kaldaz, which shares a deeper origin in the Proto-Indo-European root *gel- meaning "to be cold or freeze" — a root that also produced Latin gelu, source of "gelid" and "congeal." Its Germanic cognates include German kalt and Dutch koud, which remain strikingly similar in sound and sense. The noun sense referring to the illness emerged later, by analogy with exposure to cold weather.
Related word forms
How cold is actually used
When describing weather or objects, cold is neutral in register; when describing people or behavior, it carries strongly negative connotations of unfriendliness or indifference. In medicine, "a cold" almost always refers to the common cold virus. The adjective also appears in adverbial form in phrases like "stone-cold sober."