ˈɛmɚɹəld ɹˈɪdʒ hˈaɪ skˈuːl ɪz ɐ hˈaɪ skˈuːl ɪnðə pˈaɪɐlˌʌp skˈuːl dˈɪstɹɪkt ʌv wˈɑːʃɪŋtən, juːnˈaɪɾᵻd stˈeɪts ænd ɪz kˈɑːmənli ɹᵻfˈɜːd tʊ æz ˈɜːz ɔːɹ sˈɪmpli ˌiːˈɑːɹ.
Emerald Ridge High School is a high school in the Puyallup School District of Washington, United States and is commonly referred to as ERHS or simply ER.