|This page in a nutshell: Consensus is Wikipedia's fundamental method of decision making, and is marked by addressing editors' legitimate concerns through a process of compromise while following Wikipedia policies.|
Decisions on Wikipedia are primarily made by consensus, which is accepted as the best method to achieve Wikipedia's goals, i.e., the five pillars. Consensus on Wikipedia does not mean unanimity (which is ideal but not always achievable), nor is it the result of a vote. Decision making and reaching consensus involve an effort to incorporate all editors' legitimate concerns, while respecting Wikipedia's policies and guidelines.
This policy describes how consensus is understood on Wikipedia, how to determine whether it has been achieved (and how to proceed if it has not), and describes exceptions to the principle that all decisions are made by consensus.