It's one way the dictionary tells you to pronounce a letter U. I think.
Ten is a shape that looks like an upside down "U"
A yield street sign looks like an upside down isoceles triangle.
it looks like an upside down tooth
Because if you turn a nine upside down then it does not look like anything but if you turn a six upside down then it looks like a nine.
Australia's shape looks a little like an upside down sheep.
freaks like you
The Alpinestars logo has what looks like an upside down e and a star.
A Trackball.
Cassiopeia
Florida looks like an upside-down "L"
It looks like an upside-down "T".
trac ball.