干支

gānzhī
  1. the ten Heavenly Stems 十天干 shítiāngān and twelve earthly branches 十二枝
  2. sexagenary cycle

CEDICT

The Chinese sexagenary cycle expressed as combinations of the ten heavenly stems and the twelve earthly branches.

Wiktionary

十天干与十二地支，合称为「干支」。为计算时间的单位。

重編國語辭典

十个天干和十二个地支的合称。

維基詞典

Entry Composition

=1 干 gān old variant of 干 gān
=1 干 gān
  1. dry
  2. dried food
  3. empty; hollow
  4. taken in to nominal kinship; adoptive; foster
  5. futile; in vain
  6. (dialect) rude; blunt
  7. (dialect) to cold-shoulder
=1 干 gān variant of 干 gān
=1 干 gān
  1. (bound form) to have to do with; to concern oneself with
  2. one of the ten heavenly stems 天干 tiāngān
  3. (archaic) shield
2 支 zhī
  1. to support
  2. to sustain
  3. to erect
  4. to raise
  5. branch
  6. division
  7. to draw money
  8. classifier for rods such as pens and guns, for army divisions and for songs or compositions