The word that indicates a literal meaning is "literally."
A word that indicates a literal meaning is called a "literal word" or a "literal term." Literal words are used to describe things or events exactly as they are, without any figurative or metaphorical interpretations. Literal words are the opposite of figurative language, which uses words and phrases in a non-literal way to create a deeper meaning.
The word that indicates a literal meaning is "literal."
