Moan

1. v. i. A low mournful or murmuring sound; — of things.
2. v. i. To make a low prolonged sound of grief or pain, whether articulate or not; to groan softly and continuously.
3. v. i. To emit a sound like moan; — said of things inanimate; as, the wind moans.
4. v. t. To bewail audibly; to lament.
5. v. t. To afflict; to distress.
6. v. i. A low prolonged sound, articulate or not, indicative of pain or of grief; a low groan.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.