any of various common Old World warblers of the genus Acrocephalus, esp A. scirpaceus, that inhabit marshy regions and have a brown plumage
reed warbler in American English
noun
a small Old World warbler, Acrocephalus scirpaceus, inhabiting marshy places
Word origin
[1795–1805]This word is first recorded in the period 1795–1805. Other words that entered Englishat around the same time include: baseball, mannerism, sensitivity, steeplechase, wrecker