Her lamenting filled the room with sorrow.

The laments of the people echoed through the streets.

Lament is the abbreviation of Lamentations.

The lamenters gathered to mourn the loss of their loved ones.

She is a renowned lamenter at funerals.

She looked at the old photograph with a lamentful expression.

The lamentings of the mourners filled the air.

The lamentability of the situation was evident to everyone.

The lamentableness of the situation was evident to everyone.

She expressed her lamentational feelings through her poetry.