There are 10 words that start with 'ip'.
| ipecac | ipecacs |
| ipomoea | ipomoeas |
| iproniazid | ipecacuanha |
| iproniazids | ipsilateral |
| ipecacuanhas | ipsilaterally |
Note: These 10 words that start with 'ip' are found from the USA & Canada version of the tournament Scrabble word list.