bubbles

painting of a boy blowing a soap bubble

Boy blowing bubbles (1867) by Édouard Manet. Painting held in the Calouste Gulbenkian Museum in Lisbon, Portugal. Public domain.

border bubble,
bubble buddy,
corona bubble,
coronavirus bubble,
covid bubble,
double bubble,
germ bubble,
lockdown bubble,
postcode bubble,
social bubble,
support bubble,
travel bubble …