Stinging is a related term of severe.

As adjectives the difference between stinging and severe

is that stinging is having the capacity to sting while severe is severe, harsh.

As a verb stinging

is .

As a noun stinging

is the act by which someone receives a sting.

False is a related term of vile.

As adjectives the difference between false and vile

is that false is (label) one of two states of a boolean variable; logic while vile is morally low; base; despicable.

In intransitive terms the difference between concentrate and converge

is that concentrate is to focus one's thought or attention (on) while converge is of two or more entities, to approach each other; to get closer and closer.

As verbs the difference between concentrate and converge

is that concentrate is to bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force while converge is of two or more entities, to approach each other; to get closer and closer.

As a noun concentrate

is a substance that is in a condensed form.

Slice is a related term of paring.

As nouns the difference between slice and paring

is that slice is that which is thin and broad while paring is query.

As a verb slice

is to cut into slices.

Championship is a related term of aid.

As a noun championship

is (sports) a competition to determine a champion, especially the final of a series of competitions.

As a proper noun aid is

.

Directly is a related term of suddenly.

As adverbs the difference between directly and suddenly

is that directly is in a direct manner; in a straight line or course while suddenly is happening quickly and with little or no warning; in a sudden manner.

As a conjunction directly

is as soon as.

Callow is a related term of rudimentary.

As adjectives the difference between callow and rudimentary

is that callow is (obsolete) bald while rudimentary is of or relating to one or more rudiments.

As a noun callow

is a callow young bird.

Leg is a synonym of support.

As nouns the difference between leg and support

is that leg is lake while support is something which supports often used attributively, as a complement or supplement to.

As a verb support is

(senseid)to keep from falling.

Opinion is a related term of caprice.

As nouns the difference between opinion and caprice

is that opinion is opinion while caprice is an impulsive, seemingly unmotivated notion or action.

Mob is a related term of gaggle.

As an initialism mob

is (nautical) m'an '''o'''ver ' b oard, used eg on the emergency button of a satellite navigator by pushing the button the operator stores the coordinates of a man overboard incident for easy access.

As a noun gaggle is

a group of geese when they are on the ground or on the water.

As a verb gaggle is

to make a noise like a goose; to cackle.