Collins English-English Dictionary

dun [d^n]

1. 1. vt. [tr] to press or importune (a debtor) for the payment of a debt

2. 2. n a person, esp a hired agent, who importunes another for the payment of a debt

3. 3. n a demand for payment, esp one in writing

4. 4. n [Etymology] C17: of unknown origin

dun [d^n]

1. 1. n a brownish-grey colour

2. 2. n a horse of this colour

3. 3. n [angling] an immature adult mayfly (the subimago), esp one of the genus Ephemera

4. 4. n an artificial fly imitating this or a similar fly

5. 5. adj of a dun colour

6. 6. adj dark and gloomy

7. 7. adj [Etymology] Old English dunn; related to Old Norse dunna wild duck, Middle Irish doun dark; see dusk