The red-eyed vireo (Vireo olivaceus), a small American songbird.
Either of two subspecies of the copperhead (Agkistrodon contortrix), a venomous pit viper native to the United States: either the broad-banded copperhead or Texas copperhead (Agkistrodon contortrix laticinctus), or the highland moccasin or northern copperhead (Agkistrodon contortrix mokasen).
The redeye tetra (Moenkhausia sanctaefilomenae), a freshwater fish, commonly kept in aquariums, native to South America.
Redness in the eye(s) of someone in a colour photograph, as an unwanted consequence of light from a flash reflecting off blood vessels in the retina.
Any of various sunfishes of the family Centrarchidae, especially the redeye bass (Micropterus coosae).
A drink made by adding a shot of espresso to a cup of coffee.
An overnight airplane flight.
A strong but poor-quality whiskey.
The red-eyed treefrog (Agalychnis callidryas), which is native to neotropical rainforests.
Redness of the conjunctiva; especially when caused by conjunctivitis (pink-eye).
The common rudd (Scardinius erythrophthalmus), a freshwater fish.
A species of cicada, Psaltoda moerens, native to eastern Australia.
Any of various round herrings of the genus Etrumeus.
Any of various grass-skippers or hesperiid butterflies of the genus Matapa.
A drink consisting of beer with tomato juice.
Often followed by it: to travel on a red-eye (“an overnight airplane flight”).
The American night heron.
A complaint or objection.
A four-digit transponder code used by aircraft for identification or transmission of emergency signals.
A warning message indicating a possible error.
An issue or complaint related to aircraft maintenance.
A shrill noise, especially made by a voice or bird; a yell, scream, or call.
To make a squawking noise; to yell, scream, or call out shrilly.
To produce a warning message, indicating a possible error.
To set or transmit a four-digit transponder code. (Normally followed by the specific code in question.)
To report an infraction; to rat on or tattle; to disclose a secret.
To speak out; to protest.