备用

備用
bèiyòng
  1. reserve
  2. spare
  3. alternate
  4. backup

CEDICT

Entry Composition

=1 备 bèi variant of 备 bèi
=1 备 bèi
  1. (bound form) to prepare; to equip
  2. (literary) fully; completely
2 用 yòng
  1. to use; to make use of; to employ
  2. (coverb) with; using
  3. to need; to have to (usu. used in the negative or in questions)
  4. usefulness; utility
  5. (bound form) expense; outlay
  6. (courteous) to eat; to drink
  7. (literary) hence; therefore