The difference between Curse and Swear

When used as nouns, curse means a supernatural detriment or hindrance, whereas swear means a swear word.

When used as verbs, curse means to place a curse upon (a person or object), whereas swear means to take an oath.

Swear is also adjective with the meaning: heavy.

check bellow for the other definitions of Curse and Swear

Curse as a noun:

A supernatural detriment or hindrance; a bane.
Curse as a noun:

A prayer or imprecation that harm may befall someone.
Curse as a noun:

The cause of great harm, evil, or misfortune; that which brings evil or severe affliction; torment.
Curse as a noun:

A vulgar epithet.
Curse as a noun (slang, dated, derogatory, usually with "the"):

A woman's menses.

Curse as a verb (transitive):

To place a curse upon (a person or object).
Curse as a verb:

To call upon divine or supernatural power to send injury upon; to imprecate evil upon; to execrate.
Curse as a verb (transitive):

To speak or shout a vulgar curse or epithet.
Curse as a verb (intransitive):

To use offensive or morally inappropriate language.
Curse as a verb:

To bring great evil upon; to be the cause of serious harm or unhappiness to; to furnish with that which will be a cause of deep trouble; to afflict or injure grievously; to harass or torment.

Swear as an adjective (UK, _, dialectal):

Heavy.
Swear as an adjective (UK, _, dialectal):

Top-heavy; too high.
Swear as an adjective (UK, _, dialectal):

Dull; heavy; lazy; slow; reluctant; unwilling.
Swear as an adjective (UK, _, dialectal):

Niggardly.
Swear as an adjective (UK, _, dialectal):

A lazy time; a short rest during working hours (especially field labour); a siesta.

Swear as a verb (UK, _, dialectal):

To be lazy; rest for a short while during working hours.