moan
n
1 a low prolonged mournful sound expressive of suffering or pleading
2 any similar mournful sound, esp. that made by the wind
3 a grumble or complaint
vb
4 to utter (words) in a low mournful manner
5 intr to make a sound like a moan
6 usually intr to grumble or complain (esp. in the phrase moan and groan)
(C13: related to Old English mænan to grieve over)
♦
moaner n
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moanful adj
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moaning n, adj
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moaningly adv