Laborious is a related term of troublesome.

As adjectives the difference between laborious and troublesome

is that laborious is requiring much physical effort; toilsome while troublesome is giving trouble or anxiety; vexatious; burdensome; wearisome.

Pulse is a synonym of tremble.

As a noun pulse

is .

As a verb tremble is

.

Guess is a related term of rate.

As nouns the difference between guess and rate

is that guess is a prediction about the outcome of something, typically made without factual evidence or support while rate is rot (process of something decaying or rotting ).

As a verb guess

is to reach a partly (or totally) unqualified conclusion.

As adjectives the difference between forgetful and inexact

is that forgetful is unable to remember things well; liable to forget while inexact is imperfectly conforming; exceeding or falling short in some respect.

Smoulder is a related term of quiver.

In obsolete|lang=en terms the difference between smoulder and quiver

is that smoulder is (obsolete) smoke; smother while quiver is (obsolete).

As verbs the difference between smoulder and quiver

is that smoulder is while quiver is to shake or move with slight and tremulous motion; to tremble; to quake; to shudder; to shiver.

As nouns the difference between smoulder and quiver

is that smoulder is (obsolete) smoke; smother while quiver is (weaponry) a container for arrows, crossbow bolts or darts, such as those fired from a bow, crossbow or blowgun.

As an adjective quiver is

(archaic) nimble, active.

In obsolete terms the difference between vivacious and gay

is that vivacious is long-lived while gay is an ornament.

As adjectives the difference between vivacious and gay

is that vivacious is lively and animated; full of life and energy while gay is happy, joyful, and lively.

As a proper noun Gay is

{{surname|A=An|English|from=nicknames}}, originally a nickname for a cheerful or lively person.

As a noun gay is

a homosexual, especially a male homosexual; see also lesbian.

As a verb gay is

to make happy or cheerful.

Bait is a related term of instigation.

As an adjective bait

is .

As a noun instigation is

the act of instigating, or the state of being instigated; incitement; especially to evil or wickedness.

As adjectives the difference between plumb and uniform

is that plumb is truly vertical, as indicated by a plumb line while uniform is unvarying; all the same.

As nouns the difference between plumb and uniform

is that plumb is a little mass of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction while uniform is a distinctive outfit that serves to identify members of a group.

As verbs the difference between plumb and uniform

is that plumb is to determine the depth, generally of a liquid; to sound while uniform is to clothe in a uniform.

As an adverb plumb

is in a vertical direction; perpendicularly.

Weld is a related term of secure.

As a noun weld

is game (animals, birds).

As an adjective secure is

free from attack or danger; protected.

As a verb secure is

to make safe; to relieve from apprehensions of, or exposure to, danger; to guard; to protect.

Dwindle is a related term of lighten.

In lang=en terms the difference between dwindle and lighten

is that dwindle is to decrease, shrink, diminish, reduce in size while lighten is to emit or disclose in, or as if in, lightning; to flash out, like lightning.

As verbs the difference between dwindle and lighten

is that dwindle is to decrease, shrink, diminish, reduce in size while lighten is to alleviate; to reduce the burden of.