As a noun dex

is (physics|and|astrophysics) an order or factor of ten used both to refer to the function $\backslash mathrm\{dex\}(x)\; =\; 10^x$ and the number of (possibly fractional) orders of magnitude separating two numbers when dealing with log to the base 10 transform of a number set the transform of 10, 100, and 1 000 000 is $\backslash log\_\{10\}(10)\; =\; 1$, $\backslash log\_\{10\}(100)\; =\; 2$, and $\backslash log\_\{10\}(1\; 000\; 000)\; =\; 6$, so the difference between 10 and 100 in base 10 is 1 dex and the difference between 1 and 1 000 000 is 6 dex or dex can be (informal) dextromethorphan or dex can be (gaming) dexterity.

As verbs the difference between bustle and butle

is that bustle is to move busily and energetically with fussiness (often followed by about ) while butle is (lb).

As a noun bustle

is an excited activity; a stir.

As a noun hoars

is .

As an adjective hoary is

white or gray with age.

As nouns the difference between neurofibromatoses and neurofibromatosis

is that neurofibromatoses is plural of neurofibromatosis while neurofibromatosis is a genetic disorder characterized by the presence of multiple neurofibromas under the skin.

As adverbs the difference between tumourously and humourously

is that tumourously is while humourously is (uk|uncommon|nonstandard).

As nouns the difference between kermes and fermes

is that kermes is kermes oak while fermes is .

As an adjective fermes is

.

As verbs the difference between keeling and keening

is that keeling is while keening is .

As nouns the difference between keeling and keening

is that keeling is (zoology) a cod while keening is intense mournful wailing after a death, often at a funeral or wake.

As an adjective keening is

sharp, shrill, especially of a sound.

As nouns the difference between soles and socles

is that soles is plural of lang=en while socles is plural of socle.

As nouns the difference between gricers and pricers

is that gricers is plural of lang=en while pricers is plural of lang=en.

As a noun shoveller

is .

As a verb shovelled is

(shovel).