at

As a preposition at

is in or very near a particular place.

As a noun at

is the @ symbol.

As an initialism AT

is initialism of lang=en.

As an adverb atcha is

eye dialect of at you.

As a symbol at

is .

As a noun ras is

.

Heat is a related term of at.

In military terms the difference between at and heat

is that at is initialism of lang=en while heat is high explosive antitank: a munition using a high explosive shaped charge to breach armour.

As nouns the difference between at and heat

is that at is the @ symbol while heat is thermal energy.

As a preposition at

is in or very near a particular place.

As an initialism AT

is initialism of lang=en.

As a verb heat is

to cause an increase in temperature of an object or space; to cause something to become hot often with "up".