水平面

horizontal plane / level surface / water level

surname Shui

water / river / liquid / beverage / additional charges or income / (of clothes) classifier for number of washes

level (of achievement etc) / standard / horizontal

surname Ping

flat / level / equal / to tie (make the same score) / to draw (score) / calm / peaceful / abbr. for 平聲|平声[ping2 sheng1]

plane (flat surface) / print media

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless