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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

living thing, animate thing go
a living (or once living) entity

organism, being go
a living thing that has (or can develop) the ability to act or function independently

animal, animate being, beast, brute, creature, fauna go
a living organism characterized by voluntary movement

chordate go
any animal of the phylum Chordata having a notochord or spinal column

vertebrate, craniate go
animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

bird go
warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings

ratite, ratite bird, flightless bird
flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches

noun.animal

8 Subcategories

ostrich, Struthio camelus go
fast-running African flightless bird with two-toed feet
cassowary go
large black flightless bird of Australia and New Guinea having a horny head crest
emu, Dromaius novaehollandiae, Emu novaehollandiae go
large Australian flightless bird similar to the ostrich but smaller
kiwi, apteryx go
nocturnal flightless bird of New Zealand having a long neck and stout legs
rhea, Rhea americana go
larger of two tall fast-running flightless birds similar to ostriches but three-toed
rhea, nandu, Pterocnemia pennata go
smaller of two tall fast-running flightless birds similar to ostriches but three-toed
elephant bird, aepyornis go
huge (to 9 ft.) extinct flightless bird of Madagascar
moa go
extinct flightless bird of New Zealand