the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun; "a Martian year takes 687 of our days"
a period of time containing 365 (or 366) days; "she is 4 years old"; "in the year 1920"
a period of time occupying a regular part of a calendar year that is used for some particular activity; "a school year"
the fundamental assumptions from which something is begun or developed or calculated or explained; "the whole argument rested on a basis of conjecture"
the most important or necessary part of something; "the basis of this drink is orange juice"
the lagging of an effect behind its cause; especially the phenomenon in which the magnetic induction of a ferromagnetic material lags behind the changing magnetic field
measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths
a principle or condition that customarily governs behavior; "it was his rule to take a walk before breakfast"; "short haircuts were the regulation"
(mathematics) a standard procedure for solving a class of mathematical problems; "he determined the upper bound with Descartes' rule of signs"; "he gave us a general formula for attacking polynomials"
any one of a systematic body of regulations defining the way of life of members of a religious order; "the rule of St. Dominic"
prescribed guide for conduct or action
directions that define the way a game or sport is to be conducted; "he knew the rules of chess"
(linguistics) a rule describing (or prescribing) a linguistic practice
the duration of a monarch's or government's power; "during the rule of Elizabeth"
keep in check; "rule one's temper"
decide with authority; "The King decreed that all firstborn males should be killed"
decide on and make a declaration about; "find someone guilty"
(astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun); "the full phase of the moon"
(physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary; "the reaction occurs in the liquid phase of the system"
a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle
any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"
adjust so as to be in a synchronized condition; "he phased the intake with the output of the machine"