This is a list of wave topics, by Wikipedia page.

0-9

• 21 cm line
• 4 o'clock wave

A

• Abbe prism
• absorption spectrum
• Airy disc
• Alfvén wave
• amphidromic point
• amplitude
• amplitude modulation
• analog sound vs. digital sound
• animal echolocation
• antiphase
• atmospheric diffraction
• atmospheric wave
• atmospheric waveguide
• audience wave

B

• Babinet's principle
• bandwidth limited pulse
• beat
• Berry phase
• Bloch wave
• blueshift
• breaking wave
• Brillouin scattering
• bullet bow shockwave
• business cycle

C

• capillary wave
• carrier wave
• chirp
• circular polarization
• closed waveguide
• coherence (physics)
• coherence length
• collimated light
• Compton effect
• continuous phase modulation
• continuous wave
• cutoff wavelength

D

• decollimation
• delta wave
• dielectric waveguide
• diffraction
• direction finding
• dispersion (optics)
• dispersion relation
• dominant wavelength
• Doppler effect
• Doppler radar

E

• e-skip
• echo (phenomenon)
• echolocation
• echo sounding
• electromagnetic wave
• electromagnetic wave cut-off
• Elliott wave
• elliptical polarization
• essential bandwidth
• evanescent wave -- evanescent waves (these two should get merged)
• extremely low frequency

F

• F wave
• Fraunhofer diffraction
• freak wave
• frequency
• frequency modulation
• fundamental frequency

G

• Gaussian beam
• geometric optics, geometrical optics
• gravitational radiation
• gravity wave
• groundwave
• group delay
• group velocity

H

• harmonic
• holography
• human echolocation
• Huygens' principle

I

• in phase
• interferometry
• internal wave
• inverse scattering

K

• Kelvin wave
• knife-edge effect

L

• Landau damping
• linear elasticity
• linear polarization
• longitudinal wave
• longwave

M

• Mach wave
• Mach-Zender interferometer
• mediumwave
• megatsunami
• microwave
• microwave auditory effect
• microwave oven
• microwave plasma
• microwaving
• Mie scattering
• millimeter cloud radar
• monochromator
• multipath propagation

O

• ocean surface wave
• optical waveguide
• out of phase
• overtone

P

• phase (waves)
• phase difference
• phase inversion
• phase modulation
• phase velocity
• pitch shifter
• plane wave
• polarization
• pressure wave
• pulse-density modulation

Q

• QT interval
• quadrature
• quadrature amplitude modulation
• quantum optics
• quantum tunneling

R

• radar
• radar astronomy
• radar cross section
• radar gun
• radio propagation
• radio waves
• rayleigh scattering
• rayleigh-Jeans law
• redshift
• reflection coefficient
• reflection seismology
• relativistic Doppler effect
• ring modulation
• ring wave guide
• ripple
• ripple tank
• Rossby wave

S

• sample (signal)
• sawtooth wave
• seiche
• seismic wave
• seismograph
• seismology
• Sellmeier equation
• shock wave
• shortwave
• sine wave
• single-sideband modulation
• skywave
• soliton
• sonar
• speed of sound
• square wave
• standing wave
• standing wave ratio
• super low frequency
• surface wave
  • surface acoustic wave
  • surface-wave-sustained mode
• surfing
• synthetic aperture radar

T

• tidal bore
• tidal power
• tidal resonance
• tide
• tired light theory
• transverse mode
• transverse wave
• travelling wave tube
• triangle wave
• trigonometric function
• tsunami

U

• ultra low frequency
• ultrasound
• ultraviolet catastrophe
• underwater wave

V

• vestigial-sideband modulation
• vibrating string
• voltage standing wave ratio

W

• wake
• wave base
• wave drag
• wave equation
• wave front
• wave impedance
• wave model
• wave period
• wave vector
• waveform
• waveform monitor
• waveguide
• wavenumber, wave number (These two articles should be merged.)
• wavenumber-frequency diagram
• waverider
• wave velocity
• wave-particle duality
• wavefunction
• wavefunction collapse
• wavelength
• wavelength-division multiplexing
• Wien's law

X

• X-band radar

Z

• zero-dispersion slope
• zero-dispersion wavelength
• zone plate