begin to be; turn into.
To be proper for; to beseem.
Of an adornment, piece of clothing etc.: to look attractive on (someone).
To come about; happen; come into being; arise.
To appear without warning.
To display as an alert, advertisement, etc. that suddenly appears on screen.
To come up with a "pop" sound.
(Of an alert, advertisement, etc.) To suddenly appear onscreen.