// Workers AI · dad joke modeIs 1D a good dimension? It's one-dimensional.
1D, 1-D, or 1d can refer to:
- One-dimensional space in physics and mathematics
- Alpha-1D adrenergic receptor
- Astra 1D, a satellite
- Canon EOS-1D, Canon's first professional digital camera
- Long March 1D, a satellite
- One Direction, an English-Irish boy band
- Penny (British pre-decimal coin), routinely abbreviated 1d
1D, the hexadecimal code for the Group Separator control character- Informal for Onedrive, a file hosting system operated by Microsoft
See also
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