Lamenter refers to one who expresses grief or sorrow vocally. Being a common term, it has several synonyms with different shades of meaning. "Mourner" refers to someone who grieves or lamentates with deep sadness. "Bewailer" implies someone who mourns with great lamentation, while "weepers" are those who express sorrow through tears. "Wailers" refer to someone who cries out as an expression of grief, while "lamentators" denote those who mourn publicly or with great intensity. "Keening" implies expressing grief with wailing or loud cries, and "crying" refers to vocalizing sorrow or sadness with or without tears. Overall, each synonym aptly captures the essence of heartache and bereavement in different ways.