robin

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A North American songbird (Turdus migratorius) having a rust-red breast and gray and black upper plumage.
• noun A small songbird (Erithacus rubecula) of Eurasia and Africa having olive-brown upper plumage and a conspicuous orange breast and face.
• noun Any of various birds resembling a robin.

from The Century Dictionary.

• noun A toxin obtained from the Robinia Pseudacacia, a locust-tree of North America.
• noun Same as robbin.
• noun A small sylviine bird of Europe, Erythacus rubecula, more fully called robin-redbreast, and also redbreast, robinet, and ruddock.
• noun The red-breasted or migratory thrush of North America, Turdus migratorius or Merula migratoria, one of the most abundant and familiar of North American birds: so called from the reddish-brown color of the under parts, which, however, is very different, both in hue and in extent, from that of the European redbreast.
• noun With a qualifying term, one of numerous warbler-like or thrush-like birds, more or less nearly related to or resembling either of the foregoing: as, the blue-throated robin. (See Cyanecula, and cut under bluethroat.)
• noun The robin-snipe or red-breasted sandpiper, Tringa canutus: a clipped name among gunners. Also beach-robin. See knot, 1.
• noun The sea-robin or red-breasted merganser, Mergus serrator.
• noun In ichthyology, a sea-robin or flying-robin; one of several kinds of Triglidæ.
• noun A local name of the pinfish.
• noun A name variously applied (commonly as part of a compound) to the herb-robert, to species of Lychnis, and to some other plants.
• noun A trimming on the front of a dress.

from the GNU version of the Collaborative International Dictionary of English.

• noun A small European singing bird (Erythacus rubecula), having a reddish breast; -- called also robin redbreast, robinet, and ruddock.
• noun An American singing bird (Merula migratoria), having the breast chestnut, or dull red. The upper parts are olive-gray, the head and tail blackish. Called also robin redbreast, and migratory thrush.
• noun Any one of several species of Australian warblers of the genera Petroica, Melanadrays, and allied genera.
• noun Any one of several Asiatic birds. See Indian robin, below.
• noun (Zoöl.) the robin snipe, or knot. See Knot.
• noun (Zoöl.) See Bluethroat.
• noun (Zoöl.) the cedar bird.
• noun (Zoöl.) the Baltimore oriole.
• noun (Zoöl.) the chewink.
• noun (Zoöl.) any one of several species of Asiatic saxoline birds of the genera Thamnobia and Pratincola. They are mostly black, usually with some white on the wings.
• noun (Zoöl.) an Asiatic singing bird (Corsycus saularis), having the back, head, neck, and breast black glossed with blue, the wings black, and the belly white.
• noun (Bot.) See under Ragged.
• noun (Zoöl.) a small Asiatic singing bird (Accentor rubeculoides), somewhat resembling the European robin.
• noun (Zoöl.) The American bluebird.
• noun (Zoöl.) The red-breasted sandpiper, or knot.
• noun (Bot.) See under Plantain.
• noun (Zoöl.), [Local, U.S.] The red-breasted merganser, or sheldrake.
• noun (Zoöl.) a redstart (Ruticulla fuliginosa), native of India.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A European robin; Erithacus rubecula.
• noun An American robin; Turdus migratorius.
• noun Various passerine birds (about 100 species) of the families Muscicapidae, Turdidae and Petroicidae (formerly Eopsaltridae), typically with a red breast.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun large American thrush having a rust-red breast and abdomen
• noun small Old World songbird with a reddish breast