Difference between Lament and Regret

LAMENT vs REGRET: NOUN

A feeling or expression of grief; a lamentation.
A song expressing grief.
An expression of grief, suffering, or sadness.
An elegy or mournful ballad, or the like.
Grief or sorrow expressed in complaints or cries; lamentation; a wailing; a moaning; a weeping.
An expression of grief or sorrow; a sad complaint; a lamentation.
A cry of sorrow and grief
A song or hymn of mourning composed or performed as a memorial to a dead person
The music for an elegy, or a tune intended to express or excite sorrowful emotion; a mournful air.
A set form of lamentation or mourning; an elegy; a mourning song or ballad.
A song or poem expressing deep grief or mourning.
A mournful poem; a lament for the dead

Penitence, Compunction, etc. See repentance.
Synonyms Concern, Sorrow, lamentation.
A written communication expressing sorrow for inability to accept an invitation.
An expression of regret: commonly in the plural.
Dislike; aversion.
Pain or distress of mind, as at something done or left undone; the earnest wish that something had not been done or did not exist; bitterness of reflection.
Grief or trouble caused by the want or loss of something formerly possessed; a painful sense of loss; desire for what is gone; sorrowful longing.
A courteous expression of regret, especially at having to decline an invitation.
A sense of loss and longing for someone or something gone or passed out of existence.
A feeling of sorrow, disappointment, distress, or remorse about something that one wishes could be different.
Sadness associated with some wrong done or some disappointment
The instance of such an emotion.
Pain of mind on account of something done or experienced in the past, with a wish that it had been different; a looking back with dissatisfaction or with longing; grief; sorrow; especially, a mourning on account of the loss of some joy, advantage, or satisfaction.

To feel sorry about (a thing that has happened), afterthink: to wish that a thing had not happened, that something else had happened instead.
To feel sorry about (any thing).
Feel remorse for; feel sorry for; be contrite about
Feel sad about the loss or absence of
Decline formally or politely
Be sorry
Express with regret

To experience regret on account of; to lose or miss with a sense of regret; to feel sorrow or dissatisfaction on account of (the happening or the loss of something)

A lament for the dead
To afflict; distress.
To bewail; mourn for; bemoan; deplore.
Synonyms Lament, Mourn, Grieve; sorrow. Lament expresses always, at least figuratively, an external act. Mourn was originally and is still often the same, but does not now suggest anything audible. Grieve suggests more of a consuming effect upon the person sorrowing. See affliction.
A mournful poem
To express sorrow; utter words or sounds of grief; mourn audibly; wail.
To show great sorrow or regret; repine; chafe; grieve.

To look back at with sorrow; feel grief or sorrowful longing for on looking back.
To grieve at; be mentally distressed on account of: as, to regret one's rashness; to regret a choice made.
Synonyms To rue, lament. See repentance.
Be contrite about
Feel sorry for
Feel remorse for

Complain, Moan, Coronach, Keen, Plaint, Requiem, Regret, Threnody, Deplore, Elegy, Dirge, Wail, Bewail, Lamentation, Bemoan

Regrettable, Apologies, Apologize, Remorse, Sorry, Disappointment, Sadness, Ruefulness, Bemoan, Rue, Bewail, Repent, Lament, Deplore, Sorrow

Cry, Weep, Mourn, Moan, Keen, Plaint, Requiem, Regret, Threnody, Deplore, Elegy, Dirge, Wail, Bewail, Lamentation

Sympathy, Contrition, Frustration, Unhappiness, Shame, Regrettable, Sorry, Sadness, Ruefulness, Rue, Bewail, Repent, Lament, Deplore, Sorrow

Pentecostal Lament: Is there a correspondence between the form of the biblical lament Psalms and early Australian Pentecostal prayer?
This is a valuable example of Christologically oriented lament, but it can strip lament of its function as human complaint toward God.
This is the first book I read on lament and the place of lament for the believer.
One does not move from lament to praise, for even in the lament the element of trust is already present.
In these two psalms we pointed out that lament psalms can move back to lament even after praise.
Kemble VA Lament of Aideen for Oscai Lament of Anastasius.
Southern Baptist, and we need to lament that, lament the pain of victims and grieve with them.
Learning to lament and to hear lament means sitting in the darkness with Job?
Christian lament away from imprecation and toward intercession, although room remains for lament?
This commentator categorised lament psalms as a primary category and individual lament psalms and community lament psalms as sub categories.

Regret following transition is not an infrequent phenomenon.
Written to express regret for making a late payment is written to express regret for making late!
American territory or an American ally, he will truly regret it, and he will regret it fast.
True remorse is never just a regret over consequence; it is a regret over motive.
Sometimes the accuser will later regret a consensual sexual encounter and may accuse the other out of regret or embarrassment.
If men do regret leaving, why do they regret it?
And thats what i regret the most, really really regret.
Yes, you will always live with this regret, but regret is a consequence of sin.
Decision Regret following Treatment for Localized Breast Cancer: Is Regret Stable Over Time?
Surely you shall regret this, and regret it bitterly.