Displacement: Humans can use language to refer to things not present in the immediate environment (past events, future plans, abstract concepts).
Productivity: Humans can create and understand new expressions based on existing rules, allowing for an infinite number of sentences.
Systematicity: Language has organized structures and rules governing how symbols are combined to form meaningful units (words, sentences).
Arbitrariness: The sound of a word has no inherent connection to its meaning.
Learnability: Humans have a natural capacity to acquire language through exposure and interaction.
