As adjectives the difference between plaintive and plangent

is that plaintive is sounding sorrowful, mournful or melancholic while plangent is having a loud, mournful sound.

As verbs the difference between detect and decide

is that detect is to discover or find by careful search, examination, or probing while decide is .

As an adjective detect

is (obsolete) detected.

As nouns the difference between uprising and appearance

is that uprising is a popular revolt that attempts to overthrow a government or its policies; an insurgency or insurrection while appearance is the act of appearing or coming into sight; the act of becoming visible to the eye.

As a verb uprising

is .

As an adjective obsolete

is obsolete, deprecated (computing).

As a noun pass is

pass (between mountains ).

As adjectives the difference between fascinating and spectacular

is that fascinating is having interesting qualities; captivating; attractive while spectacular is amazing or worthy of special notice.

As a verb fascinating

is .

As a noun spectacular is

a spectacular display.

As verbs the difference between necessitates and requires

is that necessitates is while requires is (require).

As a proper noun advent

is (christianity) the first or the expected second coming of christ.

As an adjective emerging is

becoming prominent; newly formed; emergent; rising.

As a verb emerging is

.

As a noun emerging is

emergence.

As nouns the difference between visionary and fantasy

is that visionary is someone who has visions; a seer while fantasy is that which comes from one's imagination.

As an adjective visionary

is having vision or foresight.

As a verb fantasy is

to fantasize (about).

As an adjective useless

is without use or possibility to be used.

As a noun naught is

(uk|ireland|australia|nz) (now rare or archaic in us, canada ) zero.

As a pronoun naught is

nothing.

As nouns the difference between monk and contemplation

is that monk is a male member of a monastic order who has devoted his life for religious service while contemplation is the act of the mind in considering with attention; continued attention of the mind to a particular subject; meditation; musing; study.