Ma'anar ƙamus na kalmar "filin masara" fili ne ko yanki da ake noman masara a cikinsa. "Masara" yawanci yana nufin amfanin gona da aka fi sani da masara a yawancin sassan duniya, wanda shine shukar hatsi da ke samar da ƙwaya a kan cob. Filin masara abu ne da aka saba gani a yankunan karkara inda ake noma, kuma yana iya zama muhimmin tushen abinci da samun kudin shiga ga manoma.