Ma'anar ƙamus na kalmar " ninka" ita ce ninka wani abu da biyu ko kuma yin wani abu ninki biyu ko fiye. Hakanan yana iya nufin zama ninki biyu ko yawa, ko yin wani abu sau biyu a jere. Alal misali, idan ka ce "Na ninka ajiyar kuɗin da nake samu," yana nufin cewa kun ƙara yawan ajiyar ku da kashi biyu. Idan ka ce "Na ninka cikin dariya," yana nufin cewa kun yi dariya sosai har kun yi sau biyu a jere.