Expanse is a related term of mass.

As nouns the difference between expanse and mass

is that expanse is a wide stretch, usually of sea, sky, or land while mass is march.

Twist is a related term of crinkle.

As nouns the difference between twist and crinkle

is that twist is twist while crinkle is a wrinkle, fold, crease or unevenness.

As a verb crinkle is

(ambitransitive) to fold, crease, crumple, or wad.

Twine is a related term of curl.

As nouns the difference between twine and curl

is that twine is a twist; a convolution while curl is a piece or lock of curling hair; a ringlet.

As verbs the difference between twine and curl

is that twine is to weave together while curl is (lb) to cause to move in a curve.

Drum is a related term of tun.

As nouns the difference between drum and tun

is that drum is a percussive musical instrument spanned with a thin covering on at least one end for striking, forming an acoustic chamber, affecting what materials are used to make it while tun is doing, deeds, behaviour.

As a verb drum

is to beat a drum.

Beautiful is a related term of grouse.

As adjectives the difference between beautiful and grouse

is that beautiful is attractive and possessing charm while grouse is (australian|nz|slang) excellent.

As a noun grouse is

any of various game birds of the family tetraonidae which inhabit temperate and subarctic regions of the northern hemisphere or grouse can be a cause for complaint.

As a verb grouse is

to seek or shoot grouse or grouse can be to complain or grumble.

Deduction is a related term of guess.

As nouns the difference between deduction and guess

is that deduction is deduction (all meanings) while guess is a prediction about the outcome of something, typically made without factual evidence or support.

As a verb guess is

to reach a partly (or totally) unqualified conclusion.

As adjectives the difference between unsafe and sinister

is that unsafe is not safe; dangerous while sinister is inauspicious, ominous, unlucky, illegitimate (as in bar sinister).

Burdensome is a related term of harmful.

As adjectives the difference between burdensome and harmful

is that burdensome is of or like a burden; arduous or demanding while harmful is of a kind likely to be damaging; injurious.

Indiscriminate is a related term of indifferent.

As an adjective indiscriminate

is without care or making distinctions, thoughtless.

As a verb indifferent is

.

As nouns the difference between cavern and crevasse

is that cavern is a large cave while crevasse is a crack or fissure in a glacier or snow field; a chasm.

As a verb crevasse is

to form crevasses.