High water and Neap tide

High water noun - The tide when the water is highest.

Neap tide and high water are semantically related. In some cases you can replace phrase "Neap tide" with "High water", this phrases are similar.

Neap tide noun - A less than average tide occurring at the first and third quarters of the moon.

High water and neap tide are semantically related. You can use "High water" instead a noun phrase "Neap tide".