As adjectives the difference between insincere and lighthearted

is that insincere is not genuinely meaning what has been expressed; not sincere; artificial while lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad.

In transitive terms the difference between carry and continue

is that carry is to have on one's "person" (see examples) while continue is to retain (someone) in a given state, position etc.

In intransitive terms the difference between carry and continue

is that carry is to be transmitted; to travel while continue is to resume.

As a noun hedonism

is (ethics) the belief that pleasure or happiness is the highest good in life some hedonists, such as the epicureans, have insisted that pleasure of the entire mind, not just pleasure of the senses, is the highest good.

As an adjective insatiable is

not satiable; incapable of being satisfied or appeased; very greedy; as, an insatiable appetite, thirst, or desire.

As a noun hedonist

is .

As an adjective insatiable is

not satiable; incapable of being satisfied or appeased; very greedy; as, an insatiable appetite, thirst, or desire.

As nouns the difference between parsimony and pusillanimity

is that parsimony is great reluctance to spend money unnecessarily while pusillanimity is the quality or state of being pusillanimous; the vice of being timid and cowardly, and thus not living up to one's full potential; pusillanimousness.

As a noun kindness

is the state of being kind.

As a proper noun excellence is

a title of honor or respect; more common in the form excellency.

As nouns the difference between one and singular

is that one is the neutral element with respect to multiplication in a ring while singular is a form of a word that refers to only one person or thing.

As adjectives the difference between one and singular

is that one is of a period of time, being particular; as, one morning, one year while singular is being only one of a larger population.

As a numeral one

is a numerical value equal to 1; the first number in the set of natural numbers (especially in number theory); the cardinality of the smallest nonempty set. Ordinal: first.

As a pronoun one

is one thing (among a group of others); one member of a group.

As a verb one

is to cause to become one; to gather into a single whole; to unite.

In transitive terms the difference between boom and bounce

is that boom is to make something boom while bounce is to cause to move quickly up and then down, or vice versa, once or repeatedly.

In intransitive terms the difference between boom and bounce

is that boom is to be prosperous while bounce is to move quickly up and then down, or vice versa, once or repeatedly.

As verbs the difference between boom and bounce

is that boom is to make a loud, resonant sound while bounce is to change the direction of motion after hitting an obstacle.

As nouns the difference between boom and bounce

is that boom is a low-pitched, resonant sound, such as of an explosion while bounce is a change of direction of motion after hitting the ground or an obstacle.

As an interjection boom

is used to suggest the sound of an explosion.