She 3rds the cake before sharing it.

The 3rd chapter of the book introduces the main character's dilemma.

They agreed to 3rd the prize money among the winners.

2/3rds of the committee voted in favor, so the motion passed.

The 3rd grade enjoyed a field trip to the science museum.

The school organized a field trip for the 3rd grades to visit the science museum.

When conjugating verbs, the 3rd person often requires a different ending.

The 3rd graders organized a surprise art show for their parents.

When they held hands at the cafe, we felt like 3rd wheels.

I felt like a 3rd wheel when my best friends went out on a date together.