As an adjective perspicacious

is (figuratively) of acute discernment; having keen insight; mentally perceptive.

As a noun observer is

one who makes observations, monitors or takes notice.

As nouns the difference between worry and preoccupation

is that worry is a strong feeling of anxiety while preoccupation is the state of being preoccupied or an idea that preoccupies the mind; enthrallment.

As a verb worry

is to seize or shake by the throat, especially of a dog or wolf.

As a proper noun aaron

is spanish equivalent of aaron.

As a letter g is

the seventh letter of the.

As a symbol g is

symbol for the prefix giga-.

As nouns the difference between coat and robe

is that coat is an outer garment covering the upper torso and arms.^Wprobe is a long loose outer garment, often signifying honorary stature.

As verbs the difference between coat and robe

is that coat is to cover with a coat of some material while robe is to clothe someone in a robe.

As nouns the difference between industry and economy

is that industry is (uncountable) the tendency to work persistently while economy is effective management of the resources of a community or system.

As an adjective economy is

cheap to run; using minimal resources; representing good value for money.

As adjectives the difference between desirous and wary

is that desirous is feeling desire; eagerly wishing; solicitous; eager to obtain; covetous while wary is cautious of danger; carefully watching and guarding against deception, artifices, and dangers; timorously or suspiciously prudent; circumspect; scrupulous; careful.

As adjectives the difference between sagacious and provident

is that sagacious is having or showing keen discernment, sound judgment, and farsightedness; mentally shrewd while provident is possessing, exercising, or demonstrating great care and consideration for the future.

As adjectives the difference between transcellular and paracellular

is that transcellular is between cells while paracellular is between cells.

As nouns the difference between plethora and pile

is that plethora is (usually|followed by of) an excessive amount or number; an abundance while pile is diligence.

As adjectives the difference between conniving and devious

is that conniving is that connives; conspiratorial while devious is deviating; not straightforward or honest, not frank; not standard.

As a verb conniving

is .