As you know, Hebrew nouns and adjectives derive from roots. What’s more, a correspondence exists between the verb form and the noun form. For example, the Form 1 conjugation ëÌÈúÇá (katav – wrote) yields the Form 1 noun ëÌÀúÄéáÈä (ktiva – writing).
Like noun patterns, an understanding of noun derivation will may help you expand your vocabulary quickly.