From The Collaborative International Dictionary of English v.0.48:
Moan \Moan\, v. t.
1. To bewail audibly; to lament.
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Ye floods, ye woods, ye echoes, moan
My dear Columbo, dead and gone. --Prior.
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2. To afflict; to distress. [Obs.]
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Which infinitely moans me. --Beau. & Fl.
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From The Collaborative International Dictionary of English v.0.48:
Moan \Moan\ (m[=o]n), v. i. [imp. & p. p. Moaned (m[=o]nd); p.
pr. & vb. n. Moaning.] [AS. m[=ae]nan to moan, also, to
mean; but in the latter sense perh. a different word. Cf.
Mean to intend.]
1. To make a low prolonged sound of grief or pain, whether
articulate or not; to groan softly and continuously.
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Unpitied and unheard, where misery moans. --Thomson.
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Let there bechance him pitiful mischances,
To make him moan. --Shak.
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2. To emit a sound like moan; -- said of things inanimate;
as, the wind moans.
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From The Collaborative International Dictionary of English v.0.48:
Moan \Moan\, n. [OE. mone. See Moan, v. i.]
1. A low prolonged sound, articulate or not, indicative of
pain or of grief; a low groan.
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Sullen moans, hollow groans. --Pope.
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2. A low mournful or murmuring sound; -- of things.
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Rippling waters made a pleasant moan. --Byron.
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