IPA: /æmˈfɒtərɪk/
KK: /æmˈfoʊtɛrɪk/
This word describes a substance that can act both like an acid and like a base in chemical reactions.
Water is considered amphoteric because it can either donate a proton or accept one depending on the situation.
Amphoteric → It is formed from "ampho-" (from Greek "amphoteros", meaning both or on both sides) and "-teric" (from Greek "terikos", relating to). The word describes a substance that can act as both an acid and a base, thus relating to both sides of the chemical spectrum.
Think of 'both sides' ('ampho-') when remembering that 'amphoteric' refers to a substance that can behave like both an acid and a base.