a thin sphere of liquid enclosing air or another gas

blowing bubbles is a favourite pastime of many children

I'm going to soak myself in the bath filled with bubbles

used to refer to a good or fortunate situation that is isolated from reality or unlikely to last

we both lived in a bubble, the kind provided by occupying a privileged pied-à-terre in Greenwich Village

a transparent domed cover or enclosure

piglets born into a sterile bubble

(in a cartoon or illustration) a shape resembling a cloud, balloon, or bubble, which contains text representing a character's thoughts or speech

a speech bubble

a marine mollusc that typically has a thin scroll-like shell

(of a liquid) form rising bubbles of gas or air

a pot of coffee bubbled away on the stove