Swift is a related term of spirited.

As an initialism swift

is society for worldwide interbank financial telecommunication.

As a verb spirited is

(spirit).

As an adjective spirited is

lively, vigorous, animated or courageous.

Austere is a related term of dry.

As an adjective austere

is austere.

As an acronym dry is

(computing).

Assay is a synonym of prove.

As verbs the difference between assay and prove

is that assay is to attempt (something) while prove is .

As a noun assay

is trial, attempt, essay.

Limitation is a related term of prevention.

As nouns the difference between limitation and prevention

is that limitation is the act of limiting or the state of being limited while prevention is prevention.

As adverbs the difference between several and manifold

is that several is by itself; severally while manifold is many times; repeatedly.

As nouns the difference between several and manifold

is that several is an area of land in private ownership (as opposed to common land) while manifold is a copy made by the manifold writing process.

As a determiner several

is separate, distinct; particular.

As an adjective manifold is

various in kind or quality, diverse.

As a verb manifold is

to make manifold; multiply.

Unresonant is a related term of reverberating.

As an adjective unresonant

is not resonant.

As a verb reverberating is

.

Swarm is a related term of assortment.

As nouns the difference between swarm and assortment

is that swarm is a large number of insects, especially when in motion or (for bees) migrating to a new colony while assortment is a collection of varying but related items.

As a verb swarm

is (lb) to move as a swarm .

Spirited is a related term of compelling.

As verbs the difference between spirited and compelling

is that spirited is (spirit) while compelling is .

As adjectives the difference between spirited and compelling

is that spirited is lively, vigorous, animated or courageous while compelling is requiring urgent attention.

Straight is a related term of unreserved.

As adjectives the difference between straight and unreserved

is that straight is not crooked or bent; having a constant direction throughout its length while unreserved is not reserved.

As an adverb straight

is of a direction relative to the subject, precisely; as if following a direct line.

As a noun straight

is something that is not crooked or bent.

As a verb straight

is to straighten.

Oversea is a synonym of alien.

As an adjective oversea

is (chiefly|british).

As an adverb oversea

is (chiefly|british).

As a verb alien is

.