IPA: //ˈtiːˌkɛtəl//
KK: /ˈtiːˌkɛtəl/
A container with a lid, a handle, and a spout, used for heating water, especially for making tea.
She filled the teakettle with water and placed it on the stove to boil.
Teakettle is formed from "tea" (from Chinese *t'e, meaning tea) and "kettle" (from Old Norse *ketill, meaning cauldron or pot). The word refers to a pot specifically designed for boiling water to make tea.
Think of a pot ('kettle') used for boiling water to make 'tea' — that's what a teakettle is.