learnable

Learnable is an adjective describing something that can be learned. In general use, it refers to tasks, skills, or knowledge that a person, animal, or machine can acquire through study, practice, or data. The term emphasizes the potential for acquisition rather than the difficulty of the process.

From the verb learn with the suffix -able, learnable describes things that are capable of being learned. The word is used across disciplines to label properties of subjects, tasks, or systems that permit acquisition under typical learning conditions.

In linguistics, learnability concerns whether a language can be learned under plausible conditions from the data available to a learner. The field studies constraints on possible grammars, the poverty of the stimulus, and formal models of language acquisition.

In computer science and machine learning, a problem or class is learnable if there exists an algorithm that can approximate a target function from finite data with generalization to new examples. Frameworks such as PAC learnability and VC dimension formalize these ideas.

In usability and education, learnability refers to how easy it is for someone to learn a system, interface, or procedure. Designers seek to maximize learnability by reducing cognitive load and providing intuitive feedback, tutorials, and progressive disclosure.