| 谷 |
gǔ ān suān | glutamic acid (Glu), an amino acid |
| 谷 |
gǔ | grain / corn |
| 谷 |
Gǔ | surname Gu |
| 谷 |
gǔ | valley |
| 氨 |
ān | ammonia |
| 酸 |
suān | sour / tart / sick at heart / grieved / sore / aching / pedantic / impractical / to make sarcastic remarks about sb / an acid |