Keening

The keening notes of the bagpipes resonated through the air during the memorial ceremony.

The keening smell of rotten eggs filled the kitchen, indicating a gas leak.

The keening smell of rotten eggs indicated a gas leak in the basement.

The lonely lighthouse emitted a keening beam of light that swept across the dark sea.

The eerie keening of the siren warned the residents of the impending storm.

The keening tone of his voice conveyed the depth of his heartbreak.