There are 4 14-letter words that start with 'sw'.
| swainishnesses | sweaterdresses |
| sweepingnesses | swordsmanships |
Note: These 4 14-letter words that start with 'sw' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with swa, swi, swe, swo, swu.
4-letter words start with 'sw' (13)