All 6 Uses

lament
in
Frankenstein, by Mary Shelley
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Again shall you raise the funeral wail, and the sound of your lamentations shall again and again be heard!†
p. 90.6

lamentations = passionate expressions of grief or sorrow
In this emigration I exceedingly lamented the loss of the fire which I had obtained through accident and knew not how to reproduce it.†
p. 107.9 *

lamented = expressed grief or regret
'The path of my departure was free,' and there was none to lament my annihilation.†
p. 131.5

lament = express grief or regret
This suspense is a thousand times worse than the most horrible event; tell me what new scene of death has been acted, and whose murder I am now to lament?†
p. 184.7
You throw a torch into a pile of buildings, and when they are consumed, you sit among the ruins and lament the fall.†
p. 223.2
It is not pity that you feel; you lament only because the victim of your malignity is withdrawn from your power.†
p. 223.3

Definitions:

(1) (lament)
to express grief or regret
(2) (meaning too rare to warrant focus)
Although lament typically refers to a feeling or simple vocal expression, it can refer to a vocal expression as complex as a sad song or poem. It can even refer to sad, but non-vocal music -- as when Tennessee Williams references background music in A Streetcar Named Desire.