Don't argue about this. You have just got your terms, functions, and definitions mixed up.
The substance H2O is a chemical compound of two elements, hydrogen and oxygen in the ratio of two to one per molecule of dihydrogen oxide.
The molecules of this substance can exist in three different states (as occur in other compounds). The normal states of matter are solid, liquid, and vapor (gaseous).
At 273.15 oK (Kelvin scale)--and only at that temperature--can the three states of H2O coexist stably. The common names of these states for H2O are in English: ice (or snow) = solid, water = liquid, and steam = vapor. In other languages these states of H2O will be defined by other words.
A brief review of your dictionary will tell you this, as will a course in fundamental science of matter.
Don't confuse these terms when speaking of them technically, or likely you will be contradicted.
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