noun
incoming wave; surf; swash
Refers to a wave approaching the shore, often contrasted with 引き波 (outgoing wave). Used in coastal, surfing, and oceanographic contexts.
See also: 引き波
寄せ波が砂浜に打ち寄せる。
The incoming waves wash up onto the sandy beach.
サーファーは寄せ波を待っている。
The surfers are waiting for the incoming waves.
引き波 is the outgoing or receding wave, the opposite of 寄せ波.
Compound of 寄せ (yose, 'incoming', from 寄せる 'to approach') and 波 (nami, 'wave').