Hot vs. Heat — What's the Difference?

Having or giving off heat; capable of burning.

In thermodynamics, heat is energy in transfer to or from a thermodynamic system, by mechanisms other than thermodynamic work or transfer of matter. The various mechanisms of energy transfer that define heat are stated in the next section of this article.

Being at a high temperature.

A form of energy associated with the kinetic energy of atoms or molecules and capable of being transmitted through solid and fluid media by conduction, through fluid media by convection, and through empty space by radiation.

Being at or exhibiting a temperature that is higher than normal or desirable

The transfer of energy from one body to another as a result of a difference in temperature or a change in phase.

Causing a burning sensation, as in the mouth; spicy

The sensation or perception of such energy as warmth or hotness.

Charged or energized with electricity

An abnormally high bodily temperature, as from a fever.

Radioactive or designed to use radioactive materials.

The condition of being hot.

Marked by intensity of emotion; ardent or fiery

A degree of warmth or hotness

Having or displaying great enthusiasm; eager

The warming of a room or building by a furnace or another source of energy

(Informal) Arousing intense interest, excitement, or controversy

A furnace or other source of warmth in a room or building

(Informal) Marked by excited activity or energy

A hot season; a spell of hot weather.

Violent; raging

Intensity, as of passion, emotion, color, appearance, or effect.

Sexually attractive.

The most intense or active stage

Sexually attracted; full of desire

A burning sensation in the mouth produced by spicy flavoring in food.

Sexually aroused.

Estrus.

Recently stolen

One of a series of efforts or attempts.

Wanted by the police

Sports & Games One round of several in a competition, such as a race.

Close to a successful solution or conclusion

A preliminary contest held to determine finalists.

Most recent; new or fresh

(Informal) Pressure; stress.

Currently very popular or successful

An intensification of police activity in pursuing criminals.

Requiring immediate action or attention

The police. Used with the.

(Slang) Very good or impressive. Often used in the negative

(Slang) Adverse comments or hostile criticism

(Slang) Funny or absurd

(Slang) A firearm, especially a pistol.

Performing with great skill and daring

To make warm or hot.

Having or characterized by repeated successes

To excite the feelings of; inflame.

Fast and responsive

(Physics) To increase the heat energy of (an object).

Unusually lucky

To become warm or hot.

(Music) Of, relating to, or being an emotionally charged style of performance marked by strong rhythms and improvisation

To become excited emotionally or intellectually.

Bold and bright.

(uncountable) Thermal energy.

In a hot manner; hotly.

(uncountable) The condition or quality of being hot.

While hot

(uncountable) An attribute of a spice that causes a burning sensation in the mouth.

(Informal) To cause to increase in intensity or excitement. Often used with up

(uncountable) A period of intensity, particularly of emotion.

Relating to heat and conditions which produce it.

(uncountable) An undesirable amount of attention.

(of an object) Having or giving off a high temperature.

The police.

(of a person or animal) Feeling the sensation of heat, especially to the point of discomfort.

One or more firearms.

Feverish.

A fastball.

Active, in use or ready for use (like a bullet or a firing range), turned on (like a microphone or camera).

(uncountable) A condition where a mammal is aroused sexually or where it is especially fertile and therefore eager to mate; oestrus.

Electrically charged.

In omegaverse fiction, a cyclical period in which omegas experience an intense, sometimes irresistible biological urge to mate.

(informal) Radioactive.

(countable) A preliminary race, used to determine the participants in a final race

(figurative) Relating to excited emotions.

A stage in a competition, not necessarily a sporting one; a round.

(of a temper) Easily provoked to anger.

(countable) One cycle of bringing metal to maximum temperature and working it until it is too cool to work further.

Very physically and/or sexually attractive.

(countable) A hot spell.

(slang) Sexual or sexy; involving sexual intercourse or sexual excitement.

(uncountable) Heating system; a system that raises the temperature of a room or building.

(slang) Sexually aroused; randy.

(uncountable) The output of a heating system.

Extremely attracted to.

(countable) A violent action unintermitted; a single effort.

Relating to popularity, quality, or the state of being interesting.

To get a negative reaction from the audience, especially as a heel (or bad character).

(informal) Very good, remarkable, exciting.

(transitive) To cause an increase in temperature of (an object or space); to cause to become hot often with "up".

Popular; in demand.

(intransitive) To become hotter.

Of great current interest; provoking current debate or controversy.

To excite or make hot by action or emotion; to make feverish.

Performing strongly; having repeated successes.

To excite ardour in; to rouse to action; to excite to excess; to inflame, as the passions.

Fresh; just released.

To arouse, to excite (sexually).

Relating to danger or risk.

A force in nature which is recognized in various effects, but especially in the phenomena of fusion and evaporation, and which, as manifested in fire, the sun's rays, mechanical action, chemical combination, etc., becomes directly known to us through the sense of feeling. In its nature heat is a mode of motion, being in general a form of molecular disturbance or vibration. It was formerly supposed to be a subtile, imponderable fluid, to which was given the name caloric.

Uncomfortable, difficult to deal with; awkward, dangerous, unpleasant.

The sensation caused by the force or influence of heat when excessive, or above that which is normal to the human body; the bodily feeling experienced on exposure to fire, the sun's rays, etc.; the reverse of cold.

(slang) Characterized by police presence or activity.

High temperature, as distinguished from low temperature, or cold; as, the heat of summer and the cold of winter; heat of the skin or body in fever, etc.

Stolen.

Indication of high temperature; appearance, condition, or color of a body, as indicating its temperature; redness; high color; flush; degree of temperature to which something is heated, as indicated by appearance, condition, or otherwise.

Not covered by funds on account.

A single complete operation of heating, as at a forge or in a furnace; as, to make a horseshoe in a certain number of heats.

Very close to finding or guessing something to be found or guessed.

A violent action unintermitted; a single effort; a single course in a race that consists of two or more courses; as, he won two heats out of three.

(of food) Spicy, pungent, piquant, as some chilis and other spices are.

Utmost violence; rage; vehemence; as, the heat of battle or party.

(of an electric musical instrument) Loud, producing a strong electric signal for the amplifier.

Agitation of mind; inflammation or excitement; exasperation.

(slang) Used to emphasize the short duration or small quantity of something

Animation, as in discourse; ardor; fervency; as, in the heat of argument.

Extremely fast or with great speed.

Sexual excitement in animals; readiness for sexual activity; estrus or rut.

Hotly, at a high temperature.

Fermentation.

Rapidly, quickly.

Strong psychological pressure, as in a police investigation; as, when they turned up the heat, he took it on the lam.

(especially in the phrase "come in hot", "go in hot") While shooting, while firing one's weapon(s).

To make hot; to communicate heat to, or cause to grow warm; as, to heat an oven or furnace, an iron, or the like.

To heat; to make or become hot.

To excite or make hot by action or emotion; to make feverish.

To become lively or exciting.

To excite ardor in; to rouse to action; to excite to excess; to inflame, as the passions.

Having much sensible heat; exciting the feeling of warmth in a great degree; very warm; - opposed to cold, and exceeding warm in degree; as, a hot stove; hot water or air.

To grow warm or hot by the action of fire or friction, etc., or the communication of heat; as, the iron or the water heats slowly.

Characterized by heat, ardor, or animation; easily excited; firely; vehement; passionate; violent; eager.

To grow warm or hot by fermentation, or the development of heat by chemical action; as, green hay heats in a mow, and manure in the dunghill.

Lustful; lewd; lecherous.

Heated; as, the iron though heat red-hot.

Acrid; biting; pungent; as, hot as mustard.

A form of energy that is transferred by a difference in temperature

Used of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning;

The presence of heat

Characterized by violent and forceful activity or movement; very intense;

The sensation caused by heat energy

Extended meanings; especially of psychological heat; marked by intensity or vehemence especially of passion or enthusiasm;

Intense passion or emotion

(color) bold and intense;

Applies to nonhuman mammals: a state or period of heightened sexual arousal and activity

Sexually excited or exciting;

A preliminary race in which the winner advances to a more important race

Recently stolen or smuggled;

Utility to warm a building;

Very fast;

Make hot or hotter;

Wanted by the police;

Provide with heat;

Performed or performing with unusually great skill and daring and energy;

Arouse or excite feelings and passions;

Having a piquant burning taste of spices or peppers;

Gain heat or get hot;

Very popular or successful;

Very unpleasant or even dangerous;

Newest or most recent;

Having or bringing unusually good luck;

Very good; often used in the negative;

Newly made;

Capable of quick response and great speed;

Having or showing great eagerness or enthusiasm;

Of a seeker; near to the object sought;

Having or dealing with dangerously high levels of radioactivity;

Charged or energized with electricity;

Marked by excited activity;