All 4 Uses of

lament
in
Main Street, by Sinclair Lewis

Mrs. Bogart groaned, rubbed her joints, and repeatedly dusted her hands while she made the fire, and when Carol tried to help she lamented, "Oh, it doesn't matter; guess I ain't good for much but toil and workin' anyway; seems as though that's what a lot of folks think."†
Chpt 15

lamented = expressed grief or regret

As selected by Carol and confirmed by the committee, the persons of the play were: John Grimm, a millionaire ....Guy Pollock His wife......Miss Vida Sherwin His son ......Dr. Harvey Dillon His business rival......Raymond T. Wutherspoon Friend of Mrs. Grimm ......Miss Ella Stowbody The girl from Kankakee ......Mrs. Harold C. Haydock Her brother......Dr. Terence Gould Her mother ......Mrs. David Dyer Stenographer ......Miss Rita Simons Office-boy ......Miss Myrtle Cass Maid in the Grimms' home ....Mrs. W. P. Kennicott Direction of Mrs. Kennicott Among the minor lamentations was Maud Dyer's "Well of course I suppose I look old enough to be Juanita's mother, even if Juanita is eight months older†
Chpt 18

lamentations = passionate expressions of grief or sorrow

When they were ready to go Mrs. Clark lamented, "Oh, Sam, I forgot my magazine," and Bresnahan bullied, "Come on now, if you women think you're going to be literary, you can't go with us tough guys!"†
Chpt 23 *

lamented = expressed grief or regret

Definitions:

(1) (lament)
to express grief or regret
(2) (meaning too rare to warrant focus)
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.