Mammoth Uncensored Word List:
70 words ending with ts, 4 letters long

acts aits ants apts arts bats bets bits bots buts cats cots cuts dots eats efts elts ewts fats fits gats gets gits guts hats hets hits hots huts jets jots juts kats kits lets lits lots mats muts nets nits nuts oats oots opts outs owts pats pets pits pots puts qats rats rits rots ruts sets sits sots tets tits tots tuts vats vets wets wits wots zits