Learner's definition of CONSENSUS
a general agreement about something
an idea or opinion that is shared by all the people in a group
The (general) consensus (of the group) was to go ahead with the plan.
Scientists have not reached a consensus on the cause of the disease. [=scientists do not yet agree about the cause of the disease]
There is a growing consensus [=more and more people agree] about/on the need for further investigation.
What is the consensus of opinion among the experts? [=what do the experts all say?]
Everyone on the council seems to understand the need for consensus.
There is a lack of consensus among the citizens.
The decision was made by consensus.