most·ly 
/ˈmoʊstli/ adverb
/ˈmoʊstli/ adverb 1 — used to say that a statement you are making is true or correct at most times or that it describes a usual situation or condition ▪ He gets around mostly [=mainly, chiefly] by car. [=he usually uses a car to get around] ▪ “What did you do this weekend?” “I worked in the yard, mostly.” [=I spent most of my time working in the yard] ▪ I concentrated mostly [=mainly] on getting good grades when I was in college. 2 : almost all or almost completely
▪ The story was mostly accurate. [=most of the story was accurate] ▪ The people at the concert were mostly older people. [=most of the people were older people]
▪ The story was mostly accurate. [=most of the story was accurate] ▪ The people at the concert were mostly older people. [=most of the people were older people]
