Organizational dissent means that when you are part of a group or a company, sometimes you don't agree with what your group or your company is doing. When you disagree, you may want to speak up and say something to your colleagues or your boss. This "saying something" is called dissent.
Imagine you and your friends are trying to decide what game to play, and everyone else wants to play tag, but you want to play hide-and-seek. When you tell them you want to play hide-and-seek, that's like dissenting. You are saying what you think and what you want, even though it is different from what others want.
In a company or a group, sometimes people may not agree with what their colleagues or their bosses are doing. They may not like something that is happening or how a decision is being made. But, they do not always say what they think, because they do not want to upset others or worry about their jobs. But, it is important to speak and share what you think.
Dissent is not always bad; sometimes, it can be helpful. When people share their thoughts, sometimes it can lead to better decision-making. It can also make people think twice about what they are doing and how it might impact others. It can lead to changes that make things better for everyone.