Definition of chunk noun from the Oxford Advanced Learner's Dictionary. a thick, solid piece that has been cut or broken off something. Want to learn more? (informal) a fairly large amount of something. I've already written a fair chunk of the article. This one project has taken a substantial chunk of our budget. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.