The rules of prefixes apply, but in general no hyphen.
Some examples: achromatic, atonal.
Labels
- A and P
- a-
- AAA
- AARP
- abbreviations and acronyms
- academic degrees
- addresses
- an
- company names
- congressman
- courtesy titles
- datelines
- dates
- legislative titles
- military titles
- months
- orgamizational titles
- organizations and institutions
- party affiliation
- party affiliation and titles.
- prefixes
- religious titles
- second reference
- state names
- years
