pans
snap
naps - (cat-naps, of course! 
)
pens
pins
tins
snit
[ot]For new players, the instructions for this game are:
Change just ONE letter and/or rearrange the letters and form a new 4-letter word.
No people names, brand names, trademarks, or acronyms please.
For those who are interested in challenging themselves to find words that have not been used before (if possible), this is an alphabetical list of words used thus far:
able , apes , apex , arts , back , bait , bark , bats , bear , beat , beep , beer , bind , bits , blab , blob , blue , boar , boat , boil , bolt , bone , book , brat (+1) , buck (+1) , bull , bunk , cake , cape , care , cars , cast , cats , cede , cent , chip (+1) , chop , cite , city , clad , clip , clue , coal , coat , code , coil , cold (+1) , colt (+1) , cook , cool (+2) , cope , cops , cord , core , cork , cost , crab , crap , craw , crop , cull , cult , cyst , damn , dare , dark , date , dead , deal , dear , deck , deed , deer , dice , died , ding , doll , done , dong (+1) , dots , drab , drat , draw , drop , dual , duck (+1) , dude , duel , dues , duke (+1) , dune , east (+1) , easy , eats , emit , exit , fake , fame , feat , feel , felt , fled , flip , foal , fold , fool , fowl , gain , gear , gene , gets , glad , glop , goad , goal , gone (+1) , gong , grab , grin , gull , gulp , heal , hear , heat , heel , herd , here , hero , hick , hoar , iota , item , jest , kale , keep (+1) , kerb , kiss , kite , knee , knot , know , lake , last , late , left , legs , lest , lice , lick , lien , lime , link , lips , list , loaf , loan , loft , lone , long (+1) , look , lore (+1) , love , luau , luck , lung , lute , mace , made , make , mare , mate , maul , meal , melt , mend , mess (+1) , mile , milk (+1) , mind , mine , mint , mire , miss , moat , mode , mole , molt , mops , muck , mule , name , naps , neck , nice , nine , nixe , node , nope , nose , note , nuke , oops , oral , oreo , pace , pale , pans , pare , park , part , past , peal , pear (+1) , peek , peep , peer , pegs , pelt , pens , perk , pest , pets , pick (+1) , pike , pine , ping , pins , pits , plug , plum , plus , pole (+2) , poll , polo , pone , pong , pool (+1) , poor , pore , port , pose , post , pots (+1) , pour , pout , prat , prod , prop , puck , pull (+1) , pulp , pure , quad , quay , race , rack , rage , rags , rain , rate , rats (+1) , read (+1) , real , reap (+1) , rear , reed , rein , rend , rent , rest , ride , rind , ring , ripe , rite , road , roar , rode , roil , role , roll , rose , rote , rots , rude , runt , sack , same , saps , scar , seal , sear , seep , seer , sent , sets , sews , sick , side , silk , silt , sips , site , skim , skit , sled , slim , slop , slue , snap , snit , soak , soap (+1) , sock , soft , solo , song (+1) , sore , sort , spam , spat , spit , spot , star (+1) , stem , step , stew , stir , stop , tabs , tack , tags , tail , take , tale , taps , tare , tarp , tart , teal , tear , test , tick , tide , tier , time , tine , tins , tint , tips , toad , tock , toil , told , toll , tome , tops , trap , tree , trek , trip , tuck , tune , twin , tyke , tyre , ules , unit (+1) , uses , vest , vice , wake , weld , wets , wind (+1) , wine , woes , wrap , xine , yale , yaul , year , yuck , zest
(Note: the number in parenthesis indicates the number of times the word has been repeated.)
[/ot]
Tips…
tops…
toss
oats
oars
ours
sour
user
fuse
safe
fare
fart
fear 