Difference between Bemoan and Regret

BEMOAN vs REGRET: NOUN

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.
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.
The instance of such an emotion.
Sadness associated with some wrong done or some disappointment
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.
Synonyms Concern, Sorrow, lamentation.
Penitence, Compunction, etc. See repentance.

Decline formally or politely
Be sorry
Feel sad about the loss or absence of
Feel remorse for; feel sorry for; be contrite about
Express with regret
To feel sorry about (any thing).
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 express disapproval of or regret for; deplore.
To express deep grief for by moaning; to express sorrow for; to lament; to bewail; to pity or sympathize with.
To express grief over; lament.

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)

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.
Feel remorse for
Feel sorry for
Be contrite about

Lambaste, Kvetch, Deride, Whine, Grumble, Decry, Regrettable, Denounce, Mourn, Moan, Complain, Regret, Deplore, Bewail, Lament

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

Whinge, Lambaste, Kvetch, Deride, Whine, Grumble, Decry, Regrettable, Denounce, Mourn, Moan, Regret, Deplore, Bewail, Lament

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

He could only bemoan his loss, while never understanding exactly why it happened.
Zarathustra does not simply bemoan his own inability and move on.
You dodge valid questions, then bemoan AMD for being vague, hypocrisy.
UHF users will bemoan the lack of control over external equipment.
Ryan, thanks for listen to me bemoan the graduate school.
Gold to bemoan the wasted money of a closed sign.
How many people do we know who bemoan family gatherings?
Let the Luca Turins of this world bemoan Amarige.
It is where all the problems you bemoan occur.
Mourn, bewail, lament, bemoan, grieve for, sorrow over.

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.