Numerativ (az lot. numero — meshumoram), kalimavu hissachahoi makhsuse, ki ba shumora hamroh omada, shumori predmethoro takid menamoyand. Masalan: nafar, cap, adad, dona, juft, band, bekh, dasta, -to, -ta va gayra. Numerativi nafar bo ismhoe, ki shakhsro dalolat mekunand, cap bo kalimahoe, ki hayvonotro nishon medihand, adad, dona va gayra bo kalimahoe, ki predmethoi bejonro dalolat mekunand, istifoda meshavand.
Numerativho (hissachahoi)-to, -ta bo shumorahoi bo harf ifodashuda yakjoya, bo shumorahoi bo raqam ifodashuda bo defis navishta meshavand. Numerativho khosiyathoi predmetu ashyoho — haddu vaznu gunjoish va gayraro ifoda menamoyand. Tarkibi iborahoi Numerativdor ba shakli shumora — numerativ — predmet, aloqai bayni kalimaho hamroqi meboshad.