Maize and Sweetcorn

Maize noun - Tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times.

Sweetcorn and maize are semantically related. In some cases you can use "Sweetcorn" instead a noun "Maize".

Maize and sweetcorn are semantically related. You can use "Maize" instead a noun "Sweetcorn".