There are 18 words that start with 'nano'.
| nanogram | nanotech |
| nanotube | nanowatt |
| nanograms | nanometer |
| nanometre | nanoscale |
| nanotechs | nanotesla |
| nanotubes | nanowatts |
| nanometers | nanometres |
| nanosecond | nanoteslas |
| nanoseconds | nanotechnology |
Note: These 18 words that start with 'nano' are found from the USA & Canada version of the tournament Scrabble word list.