There are 18 words that end with 'tline'.
cutline | hotline | potline |
setline | outline | ratline |
beltline | buntline | bustline |
gantline | flatline | plotline |
trotline | coastline | frontline |
frostline | sightline | waistline |
Note: These 18 words that end with 'tline' are found from the USA & Canada version of the tournament Scrabble word list.