IPA: /ˈtɪərˌdaʊn/
KK: /ˈtɪrˌdaʊn/
The process of taking something apart or demolishing it, often used in the context of buildings or structures.
The teardown of the old library will make way for a new community center.
Teardown is formed from "tear" (from Old English "teran", meaning to pull apart or break) and "down" (meaning from a higher to a lower position). The word describes the act of pulling something apart or breaking it down, often in a systematic way.
Imagine pulling something apart ('tear') and moving it to a lower position ('down') — that's what teardown means.
No commonly confused words.