Mostly (Adverb)

Usually; as a rule; "by and large it doesn't rain much here".

In large part; mainly or chiefly; "These accounts are largely inactive".

The company's profits come mostly from its overseas operations.
The new policy has been successful, mostly due to the efforts of the marketing team.
The tourists mostly stayed in the city center, exploring the local shops and restaurants.
The artist's work is mostly abstract, with bold colors and geometric shapes.
The students mostly worked on their projects in small groups, collaborating and sharing ideas.