IPA: //ˌfoʊtəʊˈdʒɜːrnəlist//
KK: /ˈfoʊtoʊˈdʒɜrnəlɪst/
A person who tells news stories through photographs and images, often working for newspapers or magazines.
The photojournalist captured powerful images of the protest that conveyed the emotions of the crowd.
Photojournalist → It is formed from "photo-" (from Greek "phōtos", meaning light) and "journalist" (from French "journaliste", meaning a person who writes for a journal or newspaper). The word describes a person who uses light (photography) to tell news stories.
Think of 'light' ('photo-') being used by a person who writes for a journal ('journalist') — that's how a photojournalist captures news through images.