IPA: /trænˈzækʃənl/
KK: /trænˈzækʃənl/
Relating to the process of buying, selling, or exchanging goods and services.
The company implemented a transactional system to improve its sales process.
Transactional → It is formed from "trans-" (meaning across) and "actio" (from Latin, meaning to do or act) and the suffix "-al" (meaning relating to). The word "transactional" refers to something that relates to the act of conducting business or exchanges across parties.
Think of 'doing' something ('actio') 'across' ('trans-') different parties, which helps you remember that 'transactional' relates to business exchanges.