Alternative form of leapfrog.

Alternative form of leapfrog.

Alternative form of Lover's Leap

Alternative form of jump for joy

A year in the Julian or Gregorian calendars with an intercalary day added to February, used to adjust for the extra hours of the solar year; a 366-day year.

(quantum mechanics) The discontinuous change of the state of an electron in an atom or molecule from one energy level to another. / (figuratively) An abrupt, extreme change.

An extra day intercalated into a year, especially the day intercalated into the Julian calendar every fourth year and into the Gregorian calendar every fourth year excepting centuries not divisible by 400, usually reckoned as February 29th.

A second of time added to the year occasionally to compensate for variation in the rate of Earth's rotation relative to the absolute standards of time.

A nickname for a vehicle. / A nickname for someone or something that leaps. / The name given to a 1954 Cold War hero pigeon.

plural of leap of faith