Focus on the pronunciation of vaccine
English definition of “vaccine”
/ˈvæk·sin/, /vækˈsin/ n [C]
› a special substance that you take into your body to prevent a disease, and that contains a weakened or dead form of the disease-causing organism vaccinate
/ˈvæk·səˌneɪt/ v [T] › Our children have been vaccinated for measles and other childhood diseases. vaccination
/ˌvæk·səˈneɪ·ʃən/ n [C] › Most states require all children to receive the vaccination before beginning elementary school.