On days when the wind and waves are strong, we can't go out fishing.
discord; trouble; strife; hardships
Figurative use for interpersonal conflict, trouble, or life's hardships. Often used in phrases like 波風が立つ (discord arises) or 波風を立てる (to cause trouble). Sense 3 (hardships) is a natural extension of the discord metaphor.
His remark caused discord in the meeting.
I want to live peacefully without causing any trouble.
Compound of 波 (wave) and 風 (wind). The figurative sense of discord or trouble comes from the image of rough seas caused by wind and waves.