Hot primarily means having a high temperature. It also describes food or drink that is spicy, a topic or situation that is exciting or controversial, and — as an adverb — means in a hot manner. As a phrasal verb, hot up means to become more intense or exciting.
What Does Hot Mean?
Hot descends from Old English hāt ("having a high temperature"), related to Old High German heiz and Old Norse heitr. The same Germanic root gave English the noun heat and the adjective heated. The word has been in continuous use for over a thousand years, making it one of the oldest and most versatile words in the language.
In its core sense, hot simply describes something with a high temperature: a hot oven, a hot summer's day, or a hot drink. From this physical root, the word has developed a rich set of figurative meanings. Food can be hot in the sense of spicy or pungent — the heat of chilli peppers triggering the same sensory receptors as physical warmth. A topic can be hot when it is generating significant interest, debate, or controversy; a product can be hot when everyone wants it.
As an adverb, hot follows a verb or precedes an adjective: Serve it hot; the metal glowed red-hot. As a phrasal verb, hot up (British English) means to intensify: Things are hotting up ahead of the election.
Note the key spelling rule: the comparative is hotter (double t) and the superlative is hottest — the final consonant doubles because hot is a one-syllable word ending in a single vowel followed by a single consonant.
Example Sentences
| Sentence | Level & usage note |
|---|---|
| Be careful — the soup is very hot. | A2 — literal temperature warning |
| It was a hot day, so we went to the beach. | B1 — weather adjective, simple past |
| I love Indian food, but this curry is a bit too hot for me. | B1 — spicy sense; personal preference |
| The topic of climate change is a hot subject in many English-language debates. | B2 — figurative: controversial / widely discussed |
| Tensions are hotting up between the two companies as the merger deadline approaches. | C1 — phrasal verb hot up; formal/journalistic register |
Collocations
| Collocation | Meaning / Example |
|---|---|
| hot weather | High-temperature conditions — The hot weather is forecast to continue into next week. |
| hot water | Literal: warm water; idiomatic: trouble — He got into hot water with his manager over the report. |
| hot topic | A subject generating intense debate — Artificial intelligence is a hot topic in education. |
| piping hot | Extremely hot (food/drink) — The tea arrived piping hot. |
| red-hot | Glowing with heat; or extremely popular — a red-hot market for electric vehicles |
| hot pursuit | Chasing someone immediately and quickly — The police were in hot pursuit of the suspect. |
| hot-tempered | Tending to become angry quickly — He is hot-tempered but apologises quickly. |
| hot off the press | Just published or released — Here is the news, hot off the press. |
| hot potato | A controversial issue nobody wants to deal with — Tax reform is a political hot potato. |
| hot air | Talk that sounds impressive but has no real substance — His promises turned out to be hot air. |
Usage Notes
Temperature vs. spice: In British English, hot used to describe food almost always means spicy. If you want to say the food has a high physical temperature, add the context: a hot dish straight from the oven. Without context, hot curry means spicy, not necessarily warm.
Hot up (British English): The phrasal verb hot up is standard in British English but uncommon in American English, where heat up is preferred. In writing aimed at an international audience, heat up is safer.
Register: In informal and journalistic language, hot is used very broadly to mean fashionable, in demand, or exciting. In formal writing, prefer more precise words such as controversial, topical, or popular unless the collocation is well established (e.g. hot topic, hot pursuit).
Common Mistakes
Watch Out For
Today is more hot than yesterday.
Today is hotter than yesterday. (one-syllable adjectives use -er, not more)
The weather is very heat today.
The weather is very hot today. (heat is a noun; the adjective is hot)
Things are heating up. (acceptable, but in British English contexts)
Things are hotting up. (preferred British English phrasal verb)