As adjectives the difference between alive and agile

is that alive is having life, in opposition to dead; living; being in a state in which the organs perform their functions; as, an animal or a plant which is alive while agile is having the faculty of quick motion in the limbs; apt or ready to move; nimble; active; as, an agile boy; an agile tongue.

As adjectives the difference between eager and spirited

is that eager is (obsolete) sharp; sour; acid while spirited is lively, vigorous, animated or courageous.

As a noun eager

is (tidal bore).

As a verb spirited is

(spirit).

As adjectives the difference between accommodative and changeable

is that accommodative is supplying with or obliging; accommodating while changeable is capable of being changed.

As verbs the difference between harsh and castigating

is that harsh is to negatively criticize while castigating is present participle of castigate.

As an adjective harsh

is unpleasantly rough to the touch or other senses.

As verbs the difference between hearted and petrified

is that hearted is (heart) while petrified is (petrify).

As adjectives the difference between hearted and petrified

is that hearted is (in combination) having, or shaped like, a specified form of heart while petrified is extremely afraid.

As nouns the difference between ground and terminal

is that ground is (senseid)(uncountable) the surface of the earth, as opposed to the sky or water or underground while terminal is terminal (at an airport etc).

As a verb ground

is to connect (an electrical conductor or device) to a ground or ground can be (grind).

As an adjective ground

is crushed, or reduced to small particles.

As adjectives the difference between skilled and masterly

is that skilled is having or showing skill; skilful while masterly is that has been executed in the manner of one who is a master; extremely competently.

As a verb skilled

is (skill).

As an adverb masterly is

in a masterful manner; competently.

As nouns the difference between each and member

is that each is (operations|philosophy) an individual item: the least quantitative unit in a grouping while member is member (person).

As a determiner each

is all; every;.

As nouns the difference between affiliation and union

is that affiliation is the relationship resulting from affiliating one thing with another while union is union (action and result).

As adjectives the difference between able and fit

is that able is easy to use while fit is suitable, proper.

As verbs the difference between able and fit

is that able is to make ready while fit is to be suitable for.

As nouns the difference between able and fit

is that able is a word that is used in place of the letter "A" during communication.^Wpfit is the degree to which something fits.

As an abbreviation FIT is

fully inclusive tour.