| Noun | 1. | mole - the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites | |
| 2. | mole - a spy who works against enemy espionagespy, undercover agent - (military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors | |
| 3. | mole - spicy sauce often containing chocolatesauce - flavorful relish or dressing or topping served as an accompaniment to food | |
| 4. | mole - a small congenital pigmented spot on the skinblemish, mar, defect - a mark or flaw that spoils the appearance of something (especially on a person's body); "a facial blemish" | |
| 5. | mole - a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing awaybarrier - a structure or object that impedes free movement | |
| 6. | mole - small velvety-furred burrowing mammal having small eyes and fossorial forefeetinsectivore - small insect-eating mainly nocturnal terrestrial or fossorial mammals golden mole - mole of southern Africa having iridescent guard hairs mixed with the underfur shrew mole - slender mole having a long snout and tail | |