High-tail is a related term of gallop.

As a noun gallop is

the fastest gait of a horse, a two-beat stride during which all four legs are off the ground simultaneously.

As a verb gallop is

(intransitive of a horse, etc) to run at a gallop.

Loosen is a synonym of relax.

As verbs the difference between relax and loosen

is that relax is to calm down while loosen is to make loose.

Lush is a related term of unsparing.

As a proper noun lush

is .

As an adjective unsparing is

without sparing.

Atrocious is a related term of impious.

As adjectives the difference between atrocious and impious

is that atrocious is frightful, evil, cruel or monstrous while impious is not pious.

As verbs the difference between suppose and articulate

is that suppose is to take for granted; to conclude, with less than absolute supporting data; to believe while articulate is to make clear or effective.

As an adjective articulate is

clear, effective.

As a noun articulate is

an animal of the subkingdom Articulata.

Assembly is a related term of partnership.

As a proper noun assembly

is (us) the lower legislative body of each of a number of states of the united states, ("the assembly").

As a noun partnership is

the state of being associated with a partner.

Breaker is a related term of crest.

As a noun breaker

is something that breaks.

As an acronym crest is

(military) the five types of verbal support used to enhance an (oral) presentation: comparisons, reasons, examples, statistics, testimony.

Contrivance is a synonym of shift.

As nouns the difference between contrivance and shift

is that contrivance is a (mechanical) device to perform a certain task while shift is (computing) a modifier key whose main function is shifting between two or more functions of any of certain other keys (usually by pressing shift and the other button simultaneously).

Coarse is a related term of untutored.

As adjectives the difference between coarse and untutored

is that coarse is composed of large parts or particles; of inferior quality or appearance; not fine in material or close in texture while untutored is untrained, not taught or educated in a field of knowledge.

In intransitive terms the difference between sigh and snort

is that sigh is to make a sound like sighing while snort is to make a snort; to exhale roughly through the nose.

As an interjection sigh

is an expression of fatigue, exhaustion, grief, sorrow, frustration, or the like, often used in casual written contexts.