As a noun agitation

is .

As a verb agitated is

(agitate).

As adjectives the difference between unending and unrelenting

is that unending is not ending; having no end while unrelenting is not relenting; having no pity; not being or becoming lenient, mild, gentle, or merciful; unyielding; inflexibly rigid; hard; stern; cruel.

As verbs the difference between writh and squirm

is that writh is while squirm is to twist one’s body with snakelike motions.

As a noun squirm is

a twisting, snakelike movement of the body.

As a noun silo

is silo.

As a proper noun hopper is

.

In obsolete terms the difference between therefor and hence

is that therefor is therefore, for that or this reason or cause while hence is to send away.

As a verb hence is

to send away.

As nouns the difference between rectorate and presidency

is that rectorate is the office of a rector while presidency is the office or role of president.

As adjectives the difference between efficient and economical

is that efficient is making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy while economical is careful with money so as not to spend too much; prudent; thrifty.

As an adjective recreational

is used for recreation, for fun or pleasure.

As a noun entertainment is

an activity designed to give pleasure, enjoyment, diversion, amusement, or relaxation to an audience, no matter whether the audience participates passively as in watching opera or a movie, or actively as in games.

As nouns the difference between sailboat and airplanes

is that sailboat is a boat propelled by sails while airplanes is .

As nouns the difference between sailboats and airplanes

is that sailboats is while airplanes is .