There are 13 words that start with 'copul'.
| copula | copulae | copular | 
| copulas | copulate | copulated | 
| copulates | copulating | copulation | 
| copulative | copulatory | copulations | 
| copulatives | ||
Note: These 13 words that start with 'copul' are found from the USA & Canada version of the tournament Scrabble word list.