Definitions

1. verb

to pay attention to or take notice of something

“The crowd was trying to obelise the new street performer, but he was too distracted to notice them.”

2. verb

to take heed of something, especially a warning or a signal

“The pilot had to obelise the warning lights on the control panel to avoid a potential crash.”

3. noun

a warning or signal

“The pilot received an obelise that the engine was malfunctioning.”