The word "across" means moving from one side of something to the other side, or going from one point to another point on a surface or area. Full definition
What was the biggest change or challenge you came across from living in a new city? (theeverygirl.com)
It will be funded over five years and support 16 doctoral students and eight postdoctoral researchers from across all the universities. (news.wsu.edu)
The main reason post college life can be so overwhelming is that information regarding job searches, finance, and grad schools are scattered all across different corners of the internet. (careerdigital.com)