1. any distinct or characteristic period or stage in a sequence of events or chain of development: there were two phases to the resolution; his immaturity was a passing phase.
Moon Phase for today: Dec 13, 2025 The Moon's current phase for today and tonight is a Waning Crescent phase. This phase is best viewed just before the sunrise in the western sky. In this phase the Moon’s illumination is growing smaller each day until the New Moon.