noun
wind and waves; rough seas
Literal description of sea conditions with wind and waves.
波風が強い日は漁に出られない。
On days when the wind and waves are strong, we can't go out fishing.
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.
彼の発言で会議に波風が立った。
His remark caused discord in the meeting.
波風を立てずに穏やかに暮らしたい。
I want to live peacefully without causing any trouble.