Ma'anar ƙamus na "yarjejeniyar aiki" yarjejeniya ce ta doka tsakanin ma'aikaci da ƙungiya ko ƙungiyar ma'aikata waɗanda ke zayyana sharuɗɗan aiki, kamar albashi, fa'idodi, yanayin aiki, da sauran abubuwan da suka shafi aikin. . Yarjejeniyar ma'aikata kuma ana kiranta da yarjejeniyar haɗin gwiwa (CBA) kuma ana yin shawarwari ta hanyar tsarin sasantawa tsakanin ma'aikata da ƙungiyar da ke wakiltar ma'aikata. Manufar yarjejeniyar aiki ita ce kafa da kiyaye daidaito mai inganci tsakanin ma'aikata da ma'aikata ta hanyar ayyana haƙƙoƙinsu da wajibai.