There are 15 words that start with 'welc'.
| welch | welched |
| welcher | welches |
| welcome | welchers |
| welching | welcomed |
| welcomer | welcomes |
| welcomely | welcomers |
| welcoming | welcomeness |
| welcomenesses | |
Note: These 15 words that start with 'welc' are found from the USA & Canada version of the tournament Scrabble word list.