"you" is not a letter -- it is a word! "U" is a letter and the word "uniform" is a school-related word that matches your question.
· USB flash drives
-Geography
-Gym
-Geofact
Here are some words related to India that begin with the letter J:JaipurJabalpurJodhpurJalandharJamshedpurJhansiJammuJalgaonJunagadh
An office is in all schools. Oceanography, optometry and occupational therapy are school subjects.
Sea-related words that begin with S:South China SeaSealSea CucumberSeashellSwimShark
Cuba
volley
Here are some words that have to do with school and which begin with the letter V:VocabularyVideoconferencingVertebrateVoiceValedictorianVacationVisualVisualizeVolleyballVirtualVerbalVolunteerVaccineVegetableVessel(There are many more... you study almost everything in school, so most V words would apply in some way.)
kill
kaleidescope
· Reindeer
· homework
killers
Upadana