noun
tide; sea current
Refers to the ebb and flow of the sea or to the movement of seawater as a current. Common in expressions such as 潮が満ちる, 潮が引く, and 潮の流れ.
夕方になると潮が満ちてきた。
By evening, the tide started coming in.
この海峡は潮の流れが速い。
The current is fast in this strait.
noun
seawater; salt water from the sea
Used for seawater itself, especially when it splashes, wets, smells of the sea, or leaves salt behind. 海水 is the more neutral technical word for seawater.
船の上で潮をかぶって、服がぬれた。
I got splashed with seawater on the boat, and my clothes got wet.
noun
opportunity; chance; right moment
Figurative use meaning a suitable moment or opportunity. In modern Japanese it is limited and somewhat literary; 潮時 is a much more common word for 'the right time.'
潮を見て、彼は交渉を切り出した。
Watching for the right opportunity, he brought up the negotiations.