There are 23 words that start with 'upd'.
| updo | updos | updry |
| updart | update | updive |
| updove | updarts | updated |
| updater | updates | updived |
| updives | updraft | updried |
| updries | updarted | updaters |
| updating | updiving | updrafts |
| updrying | updarting | |
Note: These 23 words that start with 'upd' are found from the USA & Canada version of the tournament Scrabble word list.