[livre]

You don't "show offline" in WhatsApp, either "online" appears below the contact name or nothing appears. Nothing doesn't mean offline, it means the person doesn't have WhatsApp running in the foreground, they could or could not be online (which most define as "using or not using the phone right now").

[femiagbabiaka]

It was a euphemism, but good clarification! Colloquially you can interpret the lack of online-ness as offline.