IPA: /əˈplaɪər/
KK: /əˈplaɪər/
A person or device that puts something into use or practice.
The applier of the new technology demonstrated its effectiveness in the workshop.
Applier → It is formed from "apply" (from Latin "applicare", meaning to attach or to apply) and "-er" (meaning a person who). An applier is a person who applies something, such as a method or a technique.
Think of someone who 'attaches' or 'uses' something — 'apply' means to use, and '-er' indicates a person. An applier is someone who uses or applies a method.