In Hebrew grammar, abstract nouns are a unique class of words that denote an idea, quality or concept that cannot be directly sensed, like חופש (freedom), אהבה (love), or ידיעה (knowledge). These nouns, unlike concrete nouns, do not refer to physical entities that we can perceive through our senses. Moreover, as they express more complex ideas, their understanding requires a higher cognitive level. As a language learner, practicing with abstract nouns can significantly improve both your expressive skills and comprehension.