LEARNit Dictionary
high-water mark
noun
/ˌhaɪ ˈwɔːtə mɑːk/
UK
/ˌhaɪ ˈwɔːtər mɑːrk/
US
1
a line or mark showing the highest point that the sea or floodwater has reached
حد بالای آب, نشانۀ بالاترین سطح آب, خط اوج سیلاب
compare
low-water mark