The word 田地 (tiándì), meaning "farmland" or "cultivated land," is a compound word formed through the semantic combination of two closely related characters. The first character, 田, specifically means "field" or "paddy," often implying a delineated plot for growing crops. The second character, 地, has the broader meaning of "land," "earth," or "ground." When combined, 田 acts as a modifier that specifies the type of "land," creating a composite term that refines the general concept of "land" to the more precise and productive category of agricultural fields used for farming.