函授

hánshòu
to teach by correspondence

CEDICT

Entry Composition

=1 函 hán
  1. envelope
  2. case
  3. letter
=1 函 hán variant of 函 hán
2 授 shòu
  1. (bound form) to confer; to give
  2. (bound form) to teach; to instruct
  3. (literary) to appoint