To change; to come round.
To come to pass; to develop; to occur; to take place; to happen; to exist.
To tack; to change tack; to maneuver the bow of a sailing vessel across the wind so that the wind changes from one side of the vessel to the other; to position a boat with respect to the wind after tacking. See also come to.
To establish a baseline of mutual understanding
An event consisting of level setting
The set of values x for which a real-valued function f(x) is equal to a given constant.
A state of mutual understanding among parties