There are 2 13-letter words that start with 'sla'.
| slaveholdings | slavishnesses |
Note: These 2 13-letter words that start with 'sla' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with slan, slat, slav, slac, slap, slam, slab, slau, slal, slas, slag, slak, slay, slai, slaw.
4-letter words start with 'sla' (7)