Keening

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

As the fog rolled in, a keening foghorn warned ships of the treacherous rocks ahead.

The widow sat alone in her empty house, keening softly for the husband she had lost.

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