The phrase "several committees" refers to multiple groups of people who are formed to work on specific tasks or projects within an organization or institution. Full definition
She served on several committees during her legislative career, including ones focused on education, labor and children. (fox5ny.com)
But even just building a website used to take several committees, a substantial budget, and weeks or months at least. (lawyerist.com)
It was a huge job with a two - year commitment that required fund - raising, event planning, managing several committees and supervising dozens of volunteers. (remonline.com)