sports day 
noun British
An occasion on which the pupils of a school compete in various races and athletic events.Table tennis and badminton were also played and we had swimming and athletic sports days....
- Children's outdoor school activities, like sports days and outings, can now be called off if the wicked sun is out.
- Throughout Sunday, we watched these superb athletes striving to achieve their best, and I remembered sports days past at my kids' schools.
- register sheet
- register ship
- registership
- register ticket
- register ton
- register valve
- registery
- registrable
- registral
- registrant
- registrar
- registrar general
- registrarship
- registrary
- registrate
- registration
- registration act
- registrational
- registration book
- registration card
- registration document
- registration mark
- registration number
- registration paper
- registration plate