Many BN(O)s are applying for British citizenship.

The cool-o-meter measures the level of coolness in a person.

He performed a spin-o-rama to score a goal.

The spin-o-ramas performed by the figure skaters were breathtaking.

The cat o' mountain prowled through the forest.

The R. O. C. is an alternative form of ROC.

I bought a double monocular for my hiking trip.

The audience used the clap-o-meter to measure their applause.

The neighborhood was filled with jack-o-lanterns on Halloween night.

I carved a spooky jack-o-lantern for Halloween.