phas - plan
- phase
- phase angle
- phase change
- phase coherence
- phase constant
- phase correlation function
- phase delay
- phase diagram
- phase difference
- phase distortion
- phase equilibrium
- phase fluctuation
- phase frequency spectrum
- phase front
- phase function
- phase instability
- phase lag
- phase lock
- phase matrix
- phase modulation
- phase of moon
- phase parameter
- phase path
- phase plane
- phase response
- phase rule
- phase shift
- phase space
- phase spectrum
- phase speed
- phase structure function
- phase transformation
- phase velocity
- phase-lag spectrum
- phase-shift keying
- phenodate
- phenogram
- phenological calendar
- phenological chart
- phenological event
