| GU | the basic unit of money in the Netherlands |
|---|---|
| GU | the basic unit of money in Suriname |
| GU | the hall of a guild or corporation |
| GU | the use of tricks to deceive someone (usually to extract money from them) |
| GU | the quality of being crafty |
| GU | shrewdness as demonstrated by being skilled in deception |
| GU | marked by skill in deception |
| GU | free from guile |
| GU | free of deceit |
| GU | a form of peripheral polyneuritis characterized by pain and weakness and sometimes paralysis of the limbs |
| GU | French poet |
| GU | small black or brown speckled auks of northern seas |