balloon-letter
noun
A letter sent by balloon post.
Origin
Late 19th century.
- studentish
- studentism
- studentize
- student lamp
- studentless
- student loan
- student movement
- student power
- studentry
- studentship
- student's lamp
- Student's t-test
- students' union
- student teacher
- student-teachership
- student teaching
- student union
- student visa
- studenty
- student–teacher
- studerite
- stud horse
- stud-horse poker
- studiable
- studied