As nouns the difference between swarm and system

is that swarm is a large number of insects, especially when in motion or (for bees) migrating to a new colony while system is system.

As a verb swarm

is (lb) to move as a swarm .

As adjectives the difference between boundless and infinate

is that boundless is without bounds, unbounded while infinate is .

As adjectives the difference between rational and legitimate

is that rational is capable of reasoning while legitimate is in accordance with the law or established legal forms and requirements; lawful.

As a noun rational

is (mathematics) a rational number: a number that can be expressed as the quotient of two integers.

As a verb legitimate is

to make legitimate, lawful, or valid; especially, to put in the position or state of a legitimate person before the law, by legal means.

As adjectives the difference between ecstatic and thrilled

is that ecstatic is feeling or characterized by ecstasy while thrilled is extremely excited or delighted.

As a noun ecstatic

is transports of delight; words or actions performed in a state of ecstasy.

As a verb thrilled is

past tense of thrill.

As adjectives the difference between solvent and soluble

is that solvent is able to pay all debts as they become due, and having no more liabilities than assets while soluble is able to be dissolved.

As a noun solvent

is a liquid that dissolves a solid, liquid, or gaseous solute, resulting in a solution.

As nouns the difference between ditch and sewer

is that ditch is alternative form of lang=en while sewer is a pipe or system of pipes used to remove human waste and to provide drainage.

As a verb ditch

is alternative form of lang=en.

As a verb expend

is (label) to consume, exhaust (some resource).

As a noun shrinkage is

the act of shrinking, or the proportion by which something shrinks.

As a noun concubine

is a woman who lives with a man, but who is not a wife.

As a determiner her is

belonging to her.

As a pronoun her is

the form of she used after a preposition or as the object of a verb; that woman, that ship, etc.

As verbs the difference between conducting and executing

is that conducting is while executing is .

As adjectives the difference between drastic and acute

is that drastic is extreme; severe while acute is urgent.

As a noun acute is

an acute accent.

As a verb acute is

to give an acute sound to.