IPA: /prɪˈkɔːʃənˌɛri/
KK: /prɪˈkɔːʃənˌɛri/
Related to actions taken to prevent something bad from happening.
The company implemented precautionary measures to ensure the safety of its employees.
Precautionary → It is formed from "pre-" (meaning before) and "caution" (from Latin "cautio", meaning care or caution) and the suffix "-ary" (meaning relating to). The word "precautionary" refers to actions taken in advance to prevent something undesirable from happening.
Think of taking care ('caution') 'before' ('pre-') something happens — that's why precautionary means relating to actions taken in advance for safety.