However, you could consider these options, depending on the context:
* Dave: This is the most common and widely accepted nickname.
* Dav: This is another common nickname, particularly in the UK.
* Davy: This is a slightly more old-fashioned nickname.
* Dee: This is a less common nickname but could be used if David is a close friend or family member.
Ultimately, the best short word for David will depend on the specific situation and your relationship with the person.