Sorrow (7)

'sorrow' is the definition.
(I know that sorrow can be written as sadness)
This is all the clue.
(Other definitions for sadness that I've seen before include "Misery" , "Unhappy feeling" , "Melancholy" , "Sorrow, unhappiness" , "Despondency" .)
'sorrow' is the definition.
(I know that grief is a type of sorrow)
This is all the clue.
(Other definitions for grief that I've seen before include "trouble" , "sad state" , "Distress" , "Heartbreak" , "Deep sorrow" .)
'sorrow' is the definition.
(I know that sorrow can be written as regret)
This is the entire clue.
(Other definitions for regret that I've seen before include "Be contrite about" , "Feel remorse for" , "Remorse for something done or left undone" , "Feel repentance or disappointment" , "Subsidiary theorem" .)
'sorrow' is the definition.
(I know that woe is a type of mournfulness)
This is the entire clue.
(Other definitions for woe that I've seen before include "Archaic sorrow or grief" , "Misery, great suffering" , "Difficulty" , "Tale content?" , "Alas!" .)