What context can I use each word in?
Learn when and how to use these words with these examples!
ostrich
Example
The ostrich is the largest bird in the world. [ostrich: noun]
Example
The ostrich can run up to 70 km/h. [ostrich: noun]
bird
Example
The robin is a common bird found in North America. [bird: noun]
Example
Birds have hollow bones that make them lightweight for flying. [birds: noun]
Good things to know
Which word is more common?
Bird is a much more common word than ostrich and is used in everyday language to refer to any member of the class Aves. Ostrich is a less common word and is typically only used when referring specifically to the large, flightless bird native to Africa.
What’s the difference in the tone of formality between ostrich and bird?
Both ostrich and bird are relatively neutral in terms of formality and can be used in a variety of contexts, from casual conversation to scientific writing.