Ma'anar ƙamus na kalmar "kilo" prefix ce mai ma'ana "dubu" a cikin Tsarin Raka'a na Duniya (SI). Misali, kilomita daya yana daidai da mita dubu, kuma kilo daya daidai yake da giram dubu daya. Kalmar “kilo” ta fito daga kalmar Helenanci “khilioi,” wanda ke nufin “dubu.”
