ripple ②repercussions ③Japanese slit drum

radio wave ②saying strange things

wave motion ②wave

Tanba (former province located in parts of present-day Kyoto, Hyogo and Osaka prefectures)

electromagnetic wave

brain waves ②electroencephalogram

frequency (esp. of waveforms)

ultrasonic waves

disturbance ②ups and downs (e.g. in life) ③small and large waves

wavelength

shock wave

sound wave

ground wave ②terrestrial

second wave

electromagnetic interference

wavy form ②waveform

radio tower

attacking in waves

waves that remain after the wind has subsided ②after-effect

surging sea

wave ②ups and downs

roar of waves

tsunami

raging waves ②hardships

wave (on the water's surface)

to dash against (of waves) ②to wave (e.g. in the wind)

billow

the sound of waves

surging crowd

waving heads (of grain)

whitecaps ②thief

giant tsunami (over 3m in height according to the JMA definition)

between the waves

high waves

surfing

water's edge

wind and waves ②discord ③hardships

interval between the waves

old age

to be choppy (of waves) ②to wave (e.g. in the wind) ③to be in turmoil

Naniwa (former name for Osaka region)

Awa (former province located in present-day Tokushima Prefecture)

Awa Odori Festival (Tokushima)

Naniwa Bay (old name for Osaka Bay)

Poland