name: A surname (very rare: popularity rank in the U.S.: #48596)
adverb: (UK dialectal, West Country, Northern England, Scotland) yea; yes
noun: A letter of the Cyrillic alphabet: Я, я.
noun: A surname from Tamil.
noun: Abbreviation of youth authority.
noun: (publishing) Initialism of young adult. [A person who has achieved the age of majority but whose character and personality are still developing as they gain experience.]