1main 
/ˈmeɪn/ adjective
always used before a noun /ˈmeɪn/ adjective : most important : chief, principal
▪ the main idea/point ▪ the main goal/purpose ▪ Speed is the main advantage of this approach. ▪ The company's main office is located in New York. ▪ the novel's main character ▪ driving down the main road/highway ▪ the main gate/entrance ▪ This dish can be served as a main course or appetizer. ▪ And now for the main event of the evening!
▪ the main idea/point ▪ the main goal/purpose ▪ Speed is the main advantage of this approach. ▪ The company's main office is located in New York. ▪ the novel's main character ▪ driving down the main road/highway ▪ the main gate/entrance ▪ This dish can be served as a main course or appetizer. ▪ And now for the main event of the evening!
— main·ly adverb
▪ The reviews have been mainly [=mostly] positive. ▪ a plant found mainly [=chiefly] in coastal regions ▪ I don't like the plan, mainly because I think it's too expensive. ▪ The problems have been mainly minor ones. [=most of the problems have been minor ones] ▪ They depend mainly on/upon fish for food.
▪ The reviews have been mainly [=mostly] positive. ▪ a plant found mainly [=chiefly] in coastal regions ▪ I don't like the plan, mainly because I think it's too expensive. ▪ The problems have been mainly minor ones. [=most of the problems have been minor ones] ▪ They depend mainly on/upon fish for food.
